remove memoryinstrumentation

Source/core/rendering/RenderTableCol.cpp

Index: Source/core/rendering/RenderTableCol.cpp
diff --git a/Source/core/rendering/RenderTableCol.cpp b/Source/core/rendering/RenderTableCol.cpp
index 4d70e4284aaf539883039ba62ba4afb53edde085..705591c72d971f134deed20c1db3e8b9c0465eff 100644
--- a/Source/core/rendering/RenderTableCol.cpp
+++ b/Source/core/rendering/RenderTableCol.cpp
@@ -31,7 +31,6 @@
 #include "HTMLTableColElement.h"
 #include "RenderTable.h"
 #include "RenderTableCell.h"
-#include "WebCoreMemoryInstrumentation.h"
 
 namespace WebCore {
 
@@ -188,11 +187,4 @@ const BorderValue& RenderTableCol::borderAdjoiningCellAfter(const RenderTableCel
     return style()->borderEnd();
 }
 
-void RenderTableCol::reportMemoryUsage(MemoryObjectInfo* memoryObjectInfo) const
-{
-    MemoryClassInfo info(memoryObjectInfo, this, PlatformMemoryTypes::Rendering);
-    RenderBox::reportMemoryUsage(memoryObjectInfo);
-    info.addMember(m_children, "children");
-}
-
 }