Remove some orphaned USE macros.

Source/core/dom/TransformSourceLibxslt.cpp

 /*
  * Copyright (C) 2009 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 13 matching lines @@
  */
 
 #include "config.h"
 
 #include "TransformSource.h"
 
 #include <libxml/tree.h>
 
 namespace WebCore {
 
-TransformSource::TransformSource(const PlatformTransformSource& source)
+TransformSource::TransformSource(xmlDocPtr source)
     : m_source(source)
 {
 }
 
 TransformSource::~TransformSource()
 {
-    xmlFreeDoc((xmlDocPtr)m_source);
+    xmlFreeDoc(m_source);
 }
 
 } // namespace WebCore