Revert "Parts must start with 'part of'" and "Attempt to fix VM build"

dart/samples/ui_lib/touch/ClickBuster.dart

-part of touch;
-
 // Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 /**
  * Click buster implementation, which is a behavior that prevents native clicks
  * from firing at undesirable times. There are two scenarios where we may want
  * to 'bust' a click.
  *
  * Buttons implemented with touch events usually have click handlers as well.
@@ skipping 194 matching lines @@
       if (_hitTest(entry.element, entry.nextEntry().element, x, y)) {
         entry.nextEntry().remove();
         entry.remove();
         return;
       } else {
         entry = entry.nextEntry().nextEntry();
       }
     }
   }
 }