Remove duplicated headers from modules/ directory

Source/modules/indexeddb/IDBObjectStore.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 20 matching lines @@
 #include "bindings/v8/IDBBindingUtilities.h"
 #include "bindings/v8/ScriptState.h"
 #include "core/dom/DOMStringList.h"
 #include "core/dom/ExceptionCode.h"
 #include "core/dom/ExecutionContext.h"
 #include "modules/indexeddb/IDBAny.h"
 #include "modules/indexeddb/IDBCursorWithValue.h"
 #include "modules/indexeddb/IDBDatabase.h"
 #include "modules/indexeddb/IDBKeyPath.h"
 #include "modules/indexeddb/IDBTracing.h"
-#include "modules/indexeddb/IDBTransaction.h"
 #include "modules/indexeddb/WebIDBCallbacksImpl.h"
 #include "platform/SharedBuffer.h"
 #include "public/platform/WebData.h"
 #include "public/platform/WebIDBKey.h"
 #include "public/platform/WebIDBKeyRange.h"
 
 using blink::WebIDBDatabase;
 using blink::WebIDBCallbacks;
 
 namespace WebCore {
@@ skipping 568 matching lines @@
     }
     return IDBIndexMetadata::InvalidId;
 }
 
 WebIDBDatabase* IDBObjectStore::backendDB() const
 {
     return m_transaction->backendDB();
 }
 
 } // namespace WebCore