Clean up after getPropertyCSSValue

Source/core/css/CSSTransformValue.h

Index: Source/core/css/CSSTransformValue.h
diff --git a/Source/core/css/CSSTransformValue.h b/Source/core/css/CSSTransformValue.h
index 511c12242982ee1c9057108a76583c926928a509..f76ecf9d2c3068b9d037a4da00a38317593f6ab3 100644
--- a/Source/core/css/CSSTransformValue.h
+++ b/Source/core/css/CSSTransformValue.h
@@ -70,13 +70,10 @@ public:
 
     TransformOperationType operationType() const { return m_type; }
 
-    PassRefPtrWillBeRawPtr<CSSTransformValue> cloneForCSSOM() const;
-
     void traceAfterDispatch(Visitor* visitor) { CSSValueList::traceAfterDispatch(visitor); }
 
 private:
     CSSTransformValue(TransformOperationType);
-    CSSTransformValue(const CSSTransformValue& cloneFrom);
 
     TransformOperationType m_type;
 };