remove support for non-ANSI compilation

@@ -18,33 +18,29 @@
  * information: Portions Copyright [yyyy] [name of copyright owner]
  *
  * CDDL HEADER END
  */
 /*
+ * Copyright 2014 Garrett D'Amore <garrett@damore.org>
+ *
  * Copyright 1998 Sun Microsystems, Inc.  All rights reserved.
  * Use is subject to license terms.
  */
 
 #ifndef _PCSAMPLE_H
 #define _PCSAMPLE_H
 
-#pragma ident   "%Z%%M% %I%     %E% SMI"
-
 #include <sys/types.h>
 
 #ifdef __cplusplus
 extern "C" {
 #endif
 
 /*
  * PC sampling profiling
  */
-#ifdef __STDC__
 long pcsample(uintptr_t [], long);
-#else
-long pcsample();
-#endif /* __STDC__ */
 
 #ifdef __cplusplus
 }
 #endif