Remove custom left overs from object grouping

third_party/WebKit/Source/bindings/core/v8/ScriptValue.h

 /*
  * Copyright (C) 2008, 2009 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 146 matching lines @@
   void clear() { m_value = nullptr; }
 
   v8::Local<v8::Value> v8Value() const;
   // Returns v8Value() if a given ScriptState is the same as the
   // ScriptState which is associated with this ScriptValue. Otherwise
   // this "clones" the v8 value and returns it.
   v8::Local<v8::Value> v8ValueFor(ScriptState*) const;
 
   bool toString(String&) const;
 
-  void setReference(const v8::Persistent<v8::Object>& parent,
-                    v8::Isolate* isolate) {
-    m_value->setReference(parent, isolate);
-  }
-
   static ScriptValue createNull(ScriptState*);
 
  private:
   RefPtr<ScriptState> m_scriptState;
   RefPtr<SharedPersistent<v8::Value>> m_value;
 };
 
 }  // namespace blink
 
 #endif  // ScriptValue_h