Remove some unused functions in core

Source/core/page/EventHandler.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2012 Digia Plc. and/or its subsidiary(-ies)
  *
  * 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.
@@ skipping 886 matching lines @@
 
     return result;
 }
 
 void EventHandler::stopAutoscroll()
 {
     if (AutoscrollController* controller = autoscrollController())
         controller->stopAutoscroll();
 }
 
-Node* EventHandler::mousePressNode() const
-{
-    return m_mousePressNode.get();
-}
-
 bool EventHandler::scroll(ScrollDirection direction, ScrollGranularity granularity, Node* startNode, Node** stopNode, float delta, IntPoint absolutePoint)
 {
     if (!delta)
         return false;
 
     Node* node = startNode;
 
     if (!node)
         node = m_frame->document()->focusedElement();
 
@@ skipping 2980 matching lines @@
 unsigned EventHandler::accessKeyModifiers()
 {
 #if OS(MACOSX)
     return PlatformEvent::CtrlKey | PlatformEvent::AltKey;
 #else
     return PlatformEvent::AltKey;
 #endif
 }
 
 } // namespace blink