Remove duplicated headers from modules/

Source/modules/indexeddb/IDBRequest.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:
  *
  * 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 14 matching lines @@
  * (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 "modules/indexeddb/IDBRequest.h"
 
 #include "bindings/v8/ExceptionState.h"
 #include "bindings/v8/ExceptionStatePlaceholder.h"
 #include "bindings/v8/IDBBindingUtilities.h"
-#include "core/dom/DOMError.h"
 #include "core/dom/ExecutionContext.h"
-#include "core/events/EventListener.h"
 #include "core/events/EventQueue.h"
-#include "core/events/ThreadLocalEventNames.h"
 #include "modules/indexeddb/IDBCursorBackendInterface.h"
 #include "modules/indexeddb/IDBCursorWithValue.h"
 #include "modules/indexeddb/IDBDatabase.h"
 #include "modules/indexeddb/IDBEventDispatcher.h"
 #include "modules/indexeddb/IDBTracing.h"
 #include "modules/indexeddb/IDBTransaction.h"
 #include "platform/SharedBuffer.h"
 
 namespace WebCore {
 
@@ skipping 470 matching lines @@
     ASSERT_WITH_MESSAGE(m_readyState == PENDING || m_didFireUpgradeNeededEvent, "When queueing event %s, m_readyState was %d", event->type().string().utf8().data(), m_readyState);
 
     EventQueue* eventQueue = executionContext()->eventQueue();
     event->setTarget(this);
 
     if (eventQueue->enqueueEvent(event.get()))
         m_enqueuedEvents.append(event);
 }
 
 } // namespace WebCore