Removing unused functions from JSONValues class

Source/platform/JSONValues.h

 /*
  * Copyright (C) 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 88 matching lines @@
 
     bool isNull() const { return m_type == TypeNull; }
 
     virtual bool asBoolean(bool* output) const;
     virtual bool asNumber(double* output) const;
     virtual bool asNumber(long* output) const;
     virtual bool asNumber(int* output) const;
     virtual bool asNumber(unsigned long* output) const;
     virtual bool asNumber(unsigned* output) const;
     virtual bool asString(String* output) const;
-    virtual bool asValue(RefPtr<JSONValue>* output);
     virtual bool asObject(RefPtr<JSONObject>* output);
     virtual bool asArray(RefPtr<JSONArray>* output);
     virtual PassRefPtr<JSONObject> asObject();
     virtual PassRefPtr<JSONArray> asArray();
 
     String toJSONString() const;
     String toPrettyJSONString() const;
     virtual void writeJSON(StringBuilder* output) const;
     virtual void prettyWriteJSON(StringBuilder* output) const;
 
@@ skipping 222 matching lines @@
 
     using JSONArrayBase::get;
 
     using JSONArrayBase::begin;
     using JSONArrayBase::end;
 };
 
 } // namespace blink
 
 #endif // JSONValues_h