make: remove SCCS ident stuff

*** 20,34 ****
   */
  /*
   * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
   * Use is subject to license terms.
   */
- /*
-  * @(#)mksh.cc 1.22 06/12/12
-  */
  
- #pragma ident   "@(#)mksh.cc    1.22    06/12/12"
  
  /*
   *      mksh.cc
   *
   *      Execute the command(s) of one Make or DMake rule
--- 20,30 ----