make: remove SCCS ident stuff

@@ -20,15 +20,11 @@
  */
 /*
  * Copyright 1994 Sun Microsystems, Inc. All rights reserved.
  * Use is subject to license terms.
  */
-/*
- * @(#)setenv.cc 1.6 06/12/12
- */
 
-#pragma ident   "@(#)setenv.cc  1.6     06/12/12"
 
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>