Revert of Recompute overflow after transform changes

Source/core/rendering/RenderBlock.h

Index: Source/core/rendering/RenderBlock.h
diff --git a/Source/core/rendering/RenderBlock.h b/Source/core/rendering/RenderBlock.h
index 20563662e6d944b7954452c4a0560233d61f6a11..7a6a336c12e050705a7c5672a6506f840d87848e 100644
--- a/Source/core/rendering/RenderBlock.h
+++ b/Source/core/rendering/RenderBlock.h
@@ -263,10 +263,6 @@ public:
     // (grid items, flex items) require this behavior as well, and this function exists as a helper for them.
     // It is expected that the caller will call this function independent of the value of paintInfo.phase.
     static void paintAsInlineBlock(RenderObject*, PaintInfo&, const LayoutPoint&);
-
-    bool recalcChildOverflowAfterStyleChange();
-    bool recalcOverflowAfterStyleChange();
-
 protected:
     virtual void willBeDestroyed() OVERRIDE;