Remove getNodesInCommand debug method from Editing commands

Source/core/editing/RemoveCSSPropertyCommand.cpp

 /*
  * Copyright (C) 2005, 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 45 matching lines @@
     // Mutate using the CSSOM wrapper so we get the same event behavior as a script.
     // Setting to null string removes the property. We don't have internal version of removeProperty.
     m_element->style()->setPropertyInternal(m_property, String(), false, IGNORE_EXCEPTION);
 }
 
 void RemoveCSSPropertyCommand::doUnapply()
 {
     m_element->style()->setPropertyInternal(m_property, m_oldValue, m_important, IGNORE_EXCEPTION);
 }
 
-#ifndef NDEBUG
-void RemoveCSSPropertyCommand::getNodesInCommand(HashSet<Node*>& nodes)
-{
-    addNodeAndDescendants(m_element.get(), nodes);
-}
-#endif
-
 } // namespace WebCore