Remove unused getSubresourceURLs function

Source/core/dom/Node.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
@@ skipping 2081 matching lines @@
         it->value->invalidateCache(attrName);
 
     if (attrName)
         return;
 
     TagNodeListCacheNS::iterator tagCacheEnd = m_tagNodeListCacheNS.end();
     for (TagNodeListCacheNS::iterator it = m_tagNodeListCacheNS.begin(); it != tagCacheEnd; ++it)
         it->value->invalidateCache();
 }
 
-void Node::getSubresourceURLs(ListHashSet<KURL>& urls) const
-{
-    addSubresourceAttributeURLs(urls);
-}
-
 Node* Node::enclosingLinkEventParentOrSelf()
 {
     for (Node* node = this; node; node = node->parentOrShadowHostNode()) {
         // For imagemaps, the enclosing link node is the associated area element not the image itself.
         // So we don't let images be the enclosingLinkNode, even though isLink sometimes returns true
         // for them.
         if (node->isLink() && !node->hasTagName(imgTag))
             return node;
     }
 
@@ skipping 646 matching lines @@
         node->showTreeForThis();
 }
 
 void showNodePath(const WebCore::Node* node)
 {
     if (node)
         node->showNodePathForThis();
 }
 
 #endif