Remove destructors from ScriptWrappable objects in modules/

Source/modules/gamepad/GamepadList.cpp

 /*
  * Copyright (C) 2011, 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:
  *
  * 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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 15 matching lines @@
 #include "config.h"
 #include "modules/gamepad/GamepadList.h"
 
 namespace blink {
 
 GamepadList::GamepadList()
 {
     ScriptWrappable::init(this);
 }
 
-GamepadList::~GamepadList()
-{
-}
-
 void GamepadList::set(unsigned index, Gamepad* gamepad)
 {
     if (index >= blink::WebGamepads::itemsLengthCap)
         return;
     m_items[index] = gamepad;
 }
 
 Gamepad* GamepadList::item(unsigned index)
 {
     return index < length() ? m_items[index].get() : 0;
 }
 
 void GamepadList::trace(Visitor* visitor)
 {
     for (unsigned index = 0; index < blink::WebGamepads::itemsLengthCap; index++) {
         visitor->trace(m_items[index]);
     }
 }
 
 } // namespace blink