diff --git a/druid/base/back_handler.lua b/druid/base/back_handler.lua
index e3e19c8..a97c7d8 100644
--- a/druid/base/back_handler.lua
+++ b/druid/base/back_handler.lua
@@ -30,12 +30,6 @@ function BackHandler.init(self, callback, params)
 end
 
 
-function BackHandler.on_internal_remove(self)
-	component.on_internal_remove(self)
-	self.on_back:clear()
-end
-
-
 --- Input handler for component
 -- @tparam BackHandler self @{BackHandler}
 -- @tparam string action_id on_input action id
diff --git a/druid/base/button.lua b/druid/base/button.lua
index fe41c4d..61c4db2 100755
--- a/druid/base/button.lua
+++ b/druid/base/button.lua
@@ -239,17 +239,6 @@ function Button.on_late_init(self)
 end
 
 
-function Button.on_internal_remove(self)
-	component.on_internal_remove(self)
-	self.on_click:clear()
-	self.on_repeated_click:clear()
-	self.on_long_click:clear()
-	self.on_double_click:clear()
-	self.on_hold_callback:clear()
-	self.on_click_outside:clear()
-end
-
-
 function Button.on_input(self, action_id, action)
 	if not is_input_match(self, action_id) then
 		return false
diff --git a/druid/base/drag.lua b/druid/base/drag.lua
index c9c2e98..b51c1af 100644
--- a/druid/base/drag.lua
+++ b/druid/base/drag.lua
@@ -189,16 +189,6 @@ function Drag.init(self, node, on_drag_callback)
 end
 
 
-function Drag.on_internal_remove(self)
-	component.on_internal_remove(self)
-	self.on_touch_start:clear()
-	self.on_touch_end:clear()
-	self.on_drag_start:clear()
-	self.on_drag:clear()
-	self.on_drag_end:clear()
-end
-
-
 function Drag.on_late_init(self)
 	if not self.click_zone and const.IS_STENCIL_CHECK then
 		local stencil_node = helper.get_closest_stencil_node(self.node)
diff --git a/druid/base/hover.lua b/druid/base/hover.lua
index 9c71b18..05aa0ac 100644
--- a/druid/base/hover.lua
+++ b/druid/base/hover.lua
@@ -38,13 +38,6 @@ function Hover.init(self, node, on_hover_callback)
 end
 
 
-function Hover.on_internal_remove(self)
-	component.on_internal_remove(self)
-	self.on_hover:clear()
-	self.on_mouse_hover:clear()
-end
-
-
 function Hover.on_late_init(self)
 	if not self.click_zone and const.IS_STENCIL_CHECK then
 		local stencil_node = helper.get_closest_stencil_node(self.node)
diff --git a/druid/base/scroll.lua b/druid/base/scroll.lua
index 796335f..01fbdd4 100755
--- a/druid/base/scroll.lua
+++ b/druid/base/scroll.lua
@@ -174,14 +174,6 @@ function Scroll.init(self, view_node, content_node)
 end
 
 
-function Scroll.on_internal_remove(self)
-	component.on_internal_remove(self)
-	self.on_scroll:clear()
-	self.on_scroll_to:clear()
-	self.on_point_scroll:clear()
-end
-
-
 function Scroll.on_late_init(self)
 	if not self.click_zone and const.IS_STENCIL_CHECK then
 		local stencil_node = helper.get_closest_stencil_node(self.node)
diff --git a/druid/base/static_grid.lua b/druid/base/static_grid.lua
index 30f47ce..c32d4c0 100644
--- a/druid/base/static_grid.lua
+++ b/druid/base/static_grid.lua
@@ -115,16 +115,6 @@ function StaticGrid.init(self, parent, element, in_row)
 end
 
 
-function StaticGrid.on_internal_remove(self)
-	component.on_internal_remove(self)
-	self.on_add_item:clear()
-	self.on_remove_item:clear()
-	self.on_change_items:clear()
-	self.on_clear:clear()
-	self.on_update_positions:clear()
-end
-
-
 local _temp_pos = vmath.vector3(0)
 --- Return pos for grid node index
 -- @tparam StaticGrid self @{StaticGrid}
diff --git a/druid/base/swipe.lua b/druid/base/swipe.lua
index 69e9b3a..d4ecc27 100644
--- a/druid/base/swipe.lua
+++ b/druid/base/swipe.lua
@@ -99,12 +99,6 @@ function Swipe.init(self, node, on_swipe_callback)
 end
 
 
-function Swipe.on_internal_remove(self)
-	component.on_internal_remove(self)
-	self.on_swipe:clear()
-end
-
-
 function Swipe.on_late_init(self)
 	if not self.click_zone and const.IS_STENCIL_CHECK then
 		local stencil_node = helper.get_closest_stencil_node(self.node)
diff --git a/druid/base/text.lua b/druid/base/text.lua
index 13ce80d..8981ccc 100755
--- a/druid/base/text.lua
+++ b/druid/base/text.lua
@@ -217,14 +217,6 @@ function Text.init(self, node, value, adjust_type)
 end
 
 
-function Text.on_internal_remove(self)
-	component.on_internal_remove(self)
-	self.on_set_text:clear()
-	self.on_set_pivot:clear()
-	self.on_update_text_scale:clear()
-end
-
-
 function Text.on_layout_change(self)
 	self:set_to(self.last_value)
 end
diff --git a/druid/component.lua b/druid/component.lua
index 6374344..02d351a 100644
--- a/druid/component.lua
+++ b/druid/component.lua
@@ -8,7 +8,6 @@
 local const = require("druid.const")
 local class = require("druid.system.middleclass")
 local helper = require("druid.helper")
-local tablepool = require("druid.system.tablepool")
 
 
 local BaseComponent = class("druid.component")
@@ -349,11 +348,6 @@ function BaseComponent.set_debug(self, is_debug)
 end
 
 
---- On remove method on druid:remove or druid:final (protected)
-function BaseComponent:on_internal_remove()
-end
-
-
 --- Return true, if input priority was changed
 -- @tparam BaseComponent self @{BaseComponent}
 -- @local
diff --git a/druid/const.lua b/druid/const.lua
index 2d23a60..3e8c0d9 100755
--- a/druid/const.lua
+++ b/druid/const.lua
@@ -7,8 +7,6 @@
 
 local M = {}
 
-M.POOL_ID = "druid_table_pool"
-
 M.ACTION_TEXT = hash(sys.get_config("druid.input_text", "text"))
 M.ACTION_TOUCH = hash(sys.get_config("druid.input_touch", "touch"))
 M.ACTION_MARKED_TEXT = hash(sys.get_config("druid.input_marked_text", "marked_text"))
diff --git a/druid/event.lua b/druid/event.lua
index ed78904..e540de8 100644
--- a/druid/event.lua
+++ b/druid/event.lua
@@ -5,8 +5,6 @@
 -- @alias druid.event
 
 local class = require("druid.system.middleclass")
-local const = require("druid.const")
-local tablepool = require("druid.system.tablepool")
 
 local DruidEvent = class("druid.event")
 
@@ -31,13 +29,11 @@ function DruidEvent.subscribe(self, callback, context)
 	assert(type(self) == "table", "You should subscribe to event with : syntax")
 	assert(type(callback) == "function", "Callback should be function")
 
-	self._callbacks = self._callbacks or tablepool.fetch(const.POOL_ID)
-
-	local callback_table = tablepool.fetch(const.POOL_ID)
-	callback_table.callback = callback
-	callback_table.context = context
-
-	table.insert(self._callbacks, callback_table)
+	self._callbacks = self._callbacks or {}
+	table.insert(self._callbacks, {
+		callback = callback,
+		context = context
+	})
 
 	return callback
 end
@@ -54,7 +50,6 @@ function DruidEvent.unsubscribe(self, callback, context)
 
 	for index, callback_info in ipairs(self._callbacks) do
 		if callback_info.callback == callback and callback_info.context == context then
-			tablepool.release(const.POOL_ID, callback_info)
 			table.remove(self._callbacks, index)
 			return
 		end
@@ -76,14 +71,6 @@ end
 --- Clear the all event handlers
 -- @tparam DruidEvent self @{DruidEvent}
 function DruidEvent.clear(self)
-	if not self._callbacks then
-		return
-	end
-
-	for index = #self._callbacks, 1, -1 do
-		tablepool.release(const.POOL_ID, self._callbacks[index])
-	end
-	tablepool.release(const.POOL_ID, self._callbacks)
 	self._callbacks = nil
 end
 
@@ -96,7 +83,7 @@ function DruidEvent.trigger(self, ...)
 		return false
 	end
 
-	for _, callback_info in ipairs(self._callbacks) do
+	for index, callback_info in ipairs(self._callbacks) do
 		if callback_info.context then
 			callback_info.callback(callback_info.context, ...)
 		else
diff --git a/druid/extended/checkbox.lua b/druid/extended/checkbox.lua
index f7d4c82..ef1b295 100755
--- a/druid/extended/checkbox.lua
+++ b/druid/extended/checkbox.lua
@@ -67,12 +67,6 @@ function Checkbox.on_layout_change(self)
 end
 
 
-function Checkbox.on_internal_remove(self)
-	component.on_internal_remove(self)
-	self.on_change_state:clear()
-end
-
-
 --- Set checkbox state
 -- @tparam Checkbox self @{Checkbox}
 -- @tparam bool state Checkbox state
diff --git a/druid/extended/checkbox_group.lua b/druid/extended/checkbox_group.lua
index 493e5ab..2ca9561 100644
--- a/druid/extended/checkbox_group.lua
+++ b/druid/extended/checkbox_group.lua
@@ -41,13 +41,6 @@ function CheckboxGroup.init(self, nodes, callback, click_nodes)
 end
 
 
-function CheckboxGroup.on_internal_remove(self)
-	component.on_internal_remove(self)
-	self.on_checkbox_click:clear()
-end
-
-
-
 --- Set checkbox group state
 -- @tparam CheckboxGroup self @{CheckboxGroup}
 -- @tparam bool[] indexes Array of checkbox state
diff --git a/druid/extended/data_list.lua b/druid/extended/data_list.lua
index 05f21e6..e8e95c6 100644
--- a/druid/extended/data_list.lua
+++ b/druid/extended/data_list.lua
@@ -76,12 +76,6 @@ function DataList.on_remove(self)
 end
 
 
-function DataList.on_internal_remove(self)
-	component.on_internal_remove(self)
-	self.on_scroll_progress_change:clear()
-end
-
-
 --- Set new data set for DataList component
 -- @tparam DataList self @{DataList}
 -- @tparam table data The new data array
diff --git a/druid/extended/dynamic_grid.lua b/druid/extended/dynamic_grid.lua
index a9da0ae..0593715 100644
--- a/druid/extended/dynamic_grid.lua
+++ b/druid/extended/dynamic_grid.lua
@@ -89,16 +89,6 @@ function DynamicGrid.init(self, parent)
 end
 
 
-function DynamicGrid.on_internal_remove(self)
-	component.on_internal_remove(self)
-	self.on_add_item:clear()
-	self.on_remove_item:clear()
-	self.on_change_items:clear()
-	self.on_clear:clear()
-	self.on_update_positions:clear()
-end
-
-
 function DynamicGrid.on_layout_change(self)
 	self:_update(true)
 end
diff --git a/druid/extended/input.lua b/druid/extended/input.lua
index d8f43b3..d463871 100755
--- a/druid/extended/input.lua
+++ b/druid/extended/input.lua
@@ -154,17 +154,6 @@ function Input.init(self, click_node, text_node, keyboard_type)
 end
 
 
-function Input.on_internal_remove(self)
-	component.on_internal_remove(self)
-	self.on_input_select:clear()
-	self.on_input_unselect:clear()
-	self.on_input_text:clear()
-	self.on_input_empty:clear()
-	self.on_input_full:clear()
-	self.on_input_wrong:clear()
-end
-
-
 function Input.on_input(self, action_id, action)
 	if self.is_selected then
 		local input_text = nil
diff --git a/druid/extended/lang_text.lua b/druid/extended/lang_text.lua
index fec0c7d..f78b70b 100755
--- a/druid/extended/lang_text.lua
+++ b/druid/extended/lang_text.lua
@@ -41,12 +41,6 @@ function LangText.init(self, node, locale_id, no_adjust)
 end
 
 
-function LangText.on_internal_remove(self)
-	component.on_internal_remove(self)
-	self.on_change:clear()
-end
-
-
 function LangText.on_language_change(self)
 	if self.last_locale then
 		self:translate(self.last_locale, unpack(self.last_locale_args))
diff --git a/druid/extended/layout.lua b/druid/extended/layout.lua
index 719e2ae..37963f0 100644
--- a/druid/extended/layout.lua
+++ b/druid/extended/layout.lua
@@ -39,12 +39,6 @@ function Layout:init(node, mode, on_size_changed_callback)
 end
 
 
-function Layout.on_internal_remove(self)
-	component.on_internal_remove(self)
-	self.on_size_changed:clear()
-end
-
-
 function Layout:on_window_resized()
     local window_x, window_y = window.get_size()
     local stretch_x = window_x / self.window_size.x
diff --git a/druid/extended/progress.lua b/druid/extended/progress.lua
index 99ef6b2..509e57b 100644
--- a/druid/extended/progress.lua
+++ b/druid/extended/progress.lua
@@ -121,12 +121,6 @@ function Progress.init(self, node, key, init_value)
 end
 
 
-function Progress.on_internal_remove(self)
-	component.on_internal_remove(self)
-	self.on_change:clear()
-end
-
-
 -- @tparam Progress self @{Progress}
 function Progress.on_late_init(self)
 	self:set_to(self._init_value)
diff --git a/druid/extended/radio_group.lua b/druid/extended/radio_group.lua
index 768959d..fef1d00 100644
--- a/druid/extended/radio_group.lua
+++ b/druid/extended/radio_group.lua
@@ -50,12 +50,6 @@ function RadioGroup.init(self, nodes, callback, click_nodes)
 end
 
 
-function RadioGroup.on_internal_remove(self)
-	component.on_internal_remove(self)
-	self.on_radio_click:clear()
-end
-
-
 --- Set radio group state
 -- @tparam RadioGroup self @{RadioGroup}
 -- @tparam number index Index in radio group
diff --git a/druid/extended/slider.lua b/druid/extended/slider.lua
index ea5470b..4a8c90c 100644
--- a/druid/extended/slider.lua
+++ b/druid/extended/slider.lua
@@ -77,12 +77,6 @@ function Slider.init(self, node, end_pos, callback)
 end
 
 
-function Slider.on_internal_remove(self)
-	component.on_internal_remove(self)
-	self.on_change_value:clear()
-end
-
-
 function Slider.on_layout_change(self)
 	self:set(self.value)
 end
diff --git a/druid/extended/timer.lua b/druid/extended/timer.lua
index e31bdb7..21ac56b 100644
--- a/druid/extended/timer.lua
+++ b/druid/extended/timer.lua
@@ -65,14 +65,6 @@ function Timer.init(self, node, seconds_from, seconds_to, callback)
 end
 
 
-function Timer.on_internal_remove(self)
-	component.on_internal_remove(self)
-	self.on_tick:clear()
-	self.on_set_enabled:clear()
-	self.on_timer_end:clear()
-end
-
-
 function Timer.update(self, dt)
 	if not self.is_on then
 		return
diff --git a/druid/system/druid_instance.lua b/druid/system/druid_instance.lua
index 9b97842..e286e78 100755
--- a/druid/system/druid_instance.lua
+++ b/druid/system/druid_instance.lua
@@ -252,7 +252,6 @@ function DruidInstance.final(self)
 	local components = self.components_all
 
 	for i = #components, 1, -1 do
-		components[i]:on_internal_remove()
 		if components[i].on_remove then
 			components[i]:on_remove()
 		end
@@ -290,7 +289,6 @@ function DruidInstance.remove(self, component)
 	local all_components = self.components_all
 	for i = #all_components, 1, -1 do
 		if all_components[i] == component then
-			component:on_internal_remove()
 			if component.on_remove then
 				component:on_remove()
 			end
diff --git a/druid/system/tablepool.lua b/druid/system/tablepool.lua
deleted file mode 100644
index 616a86d..0000000
--- a/druid/system/tablepool.lua
+++ /dev/null
@@ -1,74 +0,0 @@
--- Source: https://github.com/openresty/lua-tablepool/blob/master/lib/tablepool.lua
-
-local setmetatable = setmetatable
-
-local _M = {}
-local max_pool_size = 500
-local pools = {}
-
-
-function _M.fetch(tag)
-    local pool = pools[tag]
-    if not pool then
-        pool = {}
-        pools[tag] = pool
-        pool.c = 0
-        pool[0] = 0
-    else
-        local len = pool[0]
-        if len > 0 then
-            local obj = pool[len]
-            pool[len] = nil
-            pool[0] = len - 1
-            return obj
-        end
-    end
-
-    return {}
-end
-
-
-function _M.release(tag, obj, noclear)
-    if not obj then
-        error("object empty", 2)
-    end
-
-    local pool = pools[tag]
-    if not pool then
-        pool = {}
-        pools[tag] = pool
-        pool.c = 0
-        pool[0] = 0
-    end
-
-    if not noclear then
-        setmetatable(obj, nil)
-        for k in pairs(obj) do
-            obj[k] = nil
-        end
-    end
-
-    do
-        local cnt = pool.c + 1
-        if cnt >= 20000 then
-            pool = {}
-            pools[tag] = pool
-            pool.c = 0
-            pool[0] = 0
-            return
-        end
-        pool.c = cnt
-    end
-
-    local len = pool[0] + 1
-    if len > max_pool_size then
-        -- discard it simply
-        return
-    end
-
-    pool[len] = obj
-    pool[0] = len
-end
-
-
-return _M