Remove unnecessary uses of GarbageCollectedFinalized<>.

third_party/WebKit/Source/core/editing/InputMethodController.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 51 matching lines @@
     return new InputMethodController(frame);
 }
 
 InputMethodController::InputMethodController(LocalFrame& frame)
     : m_frame(&frame)
     , m_isDirty(false)
     , m_hasComposition(false)
 {
 }
 
-InputMethodController::~InputMethodController()
-{
-}
-
 bool InputMethodController::hasComposition() const
 {
     return m_hasComposition;
 }
 
 inline Editor& InputMethodController::editor() const
 {
     return frame().editor();
 }
 
@@ skipping 386 matching lines @@
     TypingCommand::deleteSelection(*frame().document());
 }
 
 DEFINE_TRACE(InputMethodController)
 {
     visitor->trace(m_frame);
     visitor->trace(m_compositionRange);
 }
 
 } // namespace blink