Remove unused/unneeded code from core/editing.

Source/core/editing/Editor.h

 /*
  * Copyright (C) 2006, 2007, 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 57 matching lines @@
     CompositeEditCommand* lastEditCommand() { return m_lastEditCommand.get(); }
 
     void handleKeyboardEvent(KeyboardEvent*);
     bool handleTextEvent(TextEvent*);
 
     bool canEdit() const;
     bool canEditRichly() const;
 
     bool canDHTMLCut();
     bool canDHTMLCopy();
-    bool canDHTMLPaste();
 
     bool canCut() const;
     bool canCopy() const;
     bool canPaste() const;
     bool canDelete() const;
     bool canSmartCopyOrDelete() const;
 
     void cut();
     void copy();
     void paste();
@@ skipping 212 matching lines @@
 
 inline bool Editor::markedTextMatchesAreHighlighted() const
 {
     return m_areMarkedTextMatchesHighlighted;
 }
 
 
 } // namespace blink
 
 #endif // Editor_h