remove support for non-ANSI compilation

*** 20,40 ****
   * CDDL HEADER END
   */
  /*      Copyright (c) 1988 AT&T */
  /*        All Rights Reserved   */
  
- 
  /*
   * Copyright 1997-2003 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
   */
  
  #ifndef _MON_H
  #define _MON_H
  
- #pragma ident   "%Z%%M% %I%     %E% SMI"
- 
  #ifdef  __cplusplus
  extern "C" {
  #endif
  
  /*
--- 20,39 ----
   * CDDL HEADER END
   */
  /*      Copyright (c) 1988 AT&T */
  /*        All Rights Reserved   */
  
  /*
+  * Copyright 2014 Garrett D'Amore <garrett@damore.org>
+  *
   * Copyright 1997-2003 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
   */
  
  #ifndef _MON_H
  #define _MON_H
  
  #ifdef  __cplusplus
  extern "C" {
  #endif
  
  /*
*** 73,87 ****
  #else
  #define NULL    0
  #endif
  #endif
  
- #if defined(__STDC__)
  extern void monitor(int (*)(void), int (*)(void), WORD *, size_t, size_t);
- #else
- extern void monitor();
- #endif
  
  #ifdef  __cplusplus
  }
  #endif
  
--- 72,82 ----