remove memoryinstrumentation

Source/core/css/CSSLineBoxContainValue.cpp

Index: Source/core/css/CSSLineBoxContainValue.cpp
diff --git a/Source/core/css/CSSLineBoxContainValue.cpp b/Source/core/css/CSSLineBoxContainValue.cpp
index 24c08b400ca7b4b2c5821706cd290c439146acf2..cd54ed86d966bb2e2cb9d74455389bf4ea50951a 100644
--- a/Source/core/css/CSSLineBoxContainValue.cpp
+++ b/Source/core/css/CSSLineBoxContainValue.cpp
@@ -27,7 +27,6 @@
 #include "CSSLineBoxContainValue.h"
 
 #include "CSSPrimitiveValue.h"
-#include "WebCoreMemoryInstrumentation.h"
 #include <wtf/text/StringBuilder.h>
 #include <wtf/text/WTFString.h>
 
@@ -74,9 +73,4 @@ String CSSLineBoxContainValue::customCssText() const
     return text.toString();
 }
 
-void CSSLineBoxContainValue::reportDescendantMemoryUsage(MemoryObjectInfo* memoryObjectInfo) const
-{
-    MemoryClassInfo info(memoryObjectInfo, this, WebCoreMemoryTypes::CSS);
-}
-
 }