remove memoryinstrumentation

Source/core/css/CSSTimingFunctionValue.h

Index: Source/core/css/CSSTimingFunctionValue.h
diff --git a/Source/core/css/CSSTimingFunctionValue.h b/Source/core/css/CSSTimingFunctionValue.h
index 4c3fe0b36310371deeca38fd92c52180d92f703f..19b9c4b82b3adca4475adfd9b55d9a381473d2f7 100644
--- a/Source/core/css/CSSTimingFunctionValue.h
+++ b/Source/core/css/CSSTimingFunctionValue.h
@@ -42,8 +42,6 @@ public:
 
     bool equals(const CSSLinearTimingFunctionValue&) const { return true; }
 
-    void reportDescendantMemoryUsage(MemoryObjectInfo*) const;
-
 private:
     CSSLinearTimingFunctionValue()
         : CSSValue(LinearTimingFunctionClass)
@@ -67,8 +65,6 @@ public:
 
     bool equals(const CSSCubicBezierTimingFunctionValue&) const;
 
-    void reportDescendantMemoryUsage(MemoryObjectInfo*) const;
-
 private:
     CSSCubicBezierTimingFunctionValue(double x1, double y1, double x2, double y2)
         : CSSValue(CubicBezierTimingFunctionClass)
@@ -99,8 +95,6 @@ public:
 
     bool equals(const CSSStepsTimingFunctionValue&) const;
 
-    void reportDescendantMemoryUsage(MemoryObjectInfo*) const;
-
 private:
     CSSStepsTimingFunctionValue(int steps, bool stepAtStart)
         : CSSValue(StepsTimingFunctionClass)