remove support for non-ANSI compilation

*** 18,36 ****
   * information: Portions Copyright [yyyy] [name of copyright owner]
   *
   * CDDL HEADER END
   */
  /*
   * Copyright 1998-2002 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
   */
  
  #ifndef _SYS_CLADM_H
  #define _SYS_CLADM_H
  
- #pragma ident   "%Z%%M% %I%     %E% SMI"
- 
  #ifdef  __cplusplus
  extern "C" {
  #endif
  
  #include <sys/types.h>
--- 18,36 ----
   * information: Portions Copyright [yyyy] [name of copyright owner]
   *
   * CDDL HEADER END
   */
  /*
+  * Copyright 2014 Garrett D'Amore <garrett@damore.org>
+  *
   * Copyright 1998-2002 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
   */
  
  #ifndef _SYS_CLADM_H
  #define _SYS_CLADM_H
  
  #ifdef  __cplusplus
  extern "C" {
  #endif
  
  #include <sys/types.h>
*** 141,155 ****
  
  #ifdef _KERNEL
  extern int cladmin(int fac, int cmd, void *data);
  extern int cluster_bootflags;
  #else
- #if defined(__STDC__)
  extern int _cladm(int fac, int cmd, void *data);
- #else   /* !defined(__STDC__) */
- extern int _cladm();
- #endif  /* defined(__STDC__) */
  #endif  /* _KERNEL */
  
  #ifdef  __cplusplus
  }
  #endif
--- 141,151 ----