remove support for non-ANSI compilation

@@ -17,42 +17,33 @@
  * fields enclosed by brackets "[]" replaced with your own identifying
  * information: Portions Copyright [yyyy] [name of copyright owner]
  *
  * CDDL HEADER END
  */
+/*
+ * Copyright 2014 Garrett D'Amore <garrett@damore.org>
+ */
 /*      Copyright (c) 1988 AT&T */
 /*        All Rights Reserved   */
 
 
 #ifndef _WAIT_H
 #define _WAIT_H
 
-#pragma ident   "%Z%%M% %I%     %E% SMI"        /* SVr4.0 1.1   */
-
 #include <sys/types.h>
 #include <sys/siginfo.h>
 #include <sys/procset.h>
 #include <sys/wait.h>
 
 #ifdef  __cplusplus
 extern "C" {
 #endif
 
-#if defined(__STDC__)
-
 extern pid_t wait(int *);
 extern pid_t waitpid(pid_t, int *, int);
 extern int waitid(idtype_t, id_t, siginfo_t *, int);
 
-#else
-
-extern pid_t wait();
-extern pid_t waitpid();
-extern int waitid();
-
-#endif
-
 #ifdef  __cplusplus
 }
 #endif
 
 #endif  /* _WAIT_H */