Remove duplicated headers

Source/web/EventListenerWrapper.cpp

 /*
  * Copyright (C) 2010 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 14 matching lines @@
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "config.h"
 #include "EventListenerWrapper.h"
 
 #include "core/events/Event.h"
-#include "core/events/EventListener.h"
 
 #include "WebDOMEvent.h"
 #include "WebDOMEventListener.h"
 
 using namespace WebCore;
 
 namespace blink {
 
 EventListenerWrapper::EventListenerWrapper(WebDOMEventListener* webDOMEventListener)
     : EventListener(EventListener::NativeEventListenerType)
@@ skipping 19 matching lines @@
     WebDOMEvent webDOMEvent(event);
     m_webDOMEventListener->handleEvent(webDOMEvent);
 }
 
 void EventListenerWrapper::webDOMEventListenerDeleted()
 {
     m_webDOMEventListener = 0;
 }
 
 } // namespace blink