remove support for non-ANSI compilation

*** 18,36 ****
   * information: Portions Copyright [yyyy] [name of copyright owner]
   *
   * CDDL HEADER END
   */
  /*
   * Copyright 1996-2003 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
   */
  
  #ifndef _SCHEDCTL_H
  #define _SCHEDCTL_H
  
- #pragma ident   "%Z%%M% %I%     %E% SMI"
- 
  #ifdef __cplusplus
  extern "C" {
  #endif
  
  #include <sys/schedctl.h>
--- 18,36 ----
   * information: Portions Copyright [yyyy] [name of copyright owner]
   *
   * CDDL HEADER END
   */
  /*
+  * Copyright 2014 Garrett D'Amore <garrett@damore.org>
+  *
   * Copyright 1996-2003 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
   */
  
  #ifndef _SCHEDCTL_H
  #define _SCHEDCTL_H
  
  #ifdef __cplusplus
  extern "C" {
  #endif
  
  #include <sys/schedctl.h>
*** 49,67 ****
                  (((schedctl_t *)(p))->sc_yield? (yield(), 0) : 0)))
  
  /*
   * libsched API
   */
- #if     defined(__STDC__)
  schedctl_t      *schedctl_init(void);
  schedctl_t      *schedctl_lookup(void);
  void            schedctl_exit(void);
- #else
- schedctl_t      *schedctl_init();
- schedctl_t      *schedctl_lookup();
- void            schedctl_exit();
- #endif  /* __STDC__ */
  
  #ifdef __cplusplus
  }
  #endif
  
--- 49,61 ----