Remove duplicate copyright notice (found by script).

This commit was SVN r19984.

ompi/mca/pml/cm/pml_cm.h

@@ -4,9 +4,6 @@
  * Copyright (c) 2004-2007 The University of Tennessee and The University
  *                         of Tennessee Research Foundation.  All rights
  *                         reserved.
- * Copyright (c) 2004-2007 The University of Tennessee and The University
- *                         of Tennessee Research Foundation.  All rights
- *                         reserved.
  * $COPYRIGHT$
  *
  * Additional copyrights may follow