Remove more dead code from core/ folder

Source/core/workers/WorkerThread.h

 /*
  * Copyright (C) 2008 Apple 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 50 matching lines @@
         // (This is signalled on the main thread, so it's assumed to be waited on the worker context thread)
         blink::WebWaitableEvent* shutdownEvent() { return m_shutdownEvent.get(); }
 
         bool isCurrentThread() const;
         WorkerRunLoop& runLoop() { return m_runLoop; }
         WorkerLoaderProxy& workerLoaderProxy() const { return m_workerLoaderProxy; }
         WorkerReportingProxy& workerReportingProxy() const { return m_workerReportingProxy; }
 
         // Number of active worker threads.
         static unsigned workerThreadCount();
-        static void releaseFastMallocFreeMemoryInAllThreads();
 
         NotificationClient* getNotificationClient() { return m_notificationClient; }
         void setNotificationClient(NotificationClient* client) { m_notificationClient = client; }
 
     protected:
         WorkerThread(WorkerLoaderProxy&, WorkerReportingProxy&, PassOwnPtrWillBeRawPtr<WorkerThreadStartupData>);
 
         // Factory method for creating a new worker context for the thread.
         virtual PassRefPtrWillBeRawPtr<WorkerGlobalScope> createWorkerGlobalScope(PassOwnPtrWillBeRawPtr<WorkerThreadStartupData>) = 0;
 
@@ skipping 20 matching lines @@
 
         NotificationClient* m_notificationClient;
 
         // Used to signal thread shutdown.
         OwnPtr<blink::WebWaitableEvent> m_shutdownEvent;
     };
 
 } // namespace WebCore
 
 #endif // WorkerThread_h