remove support for non-ANSI compilation

@@ -17,10 +17,12 @@
  * information: Portions Copyright [yyyy] [name of copyright owner]
  *
  * CDDL HEADER END
  */
 /*
+ * Copyright 2014 Garrett D'Amore <garrett@damore.org>
+ *
  * Copyright 2010 Sun Microsystems, Inc.  All rights reserved.
  * Use is subject to license terms.
  */
 
 /*

@@ -46,27 +48,17 @@
  * true.  ASSERT() is included only for debugging, and is a no-op in
  * production kernels.  VERIFY(ex), on the other hand, behaves like
  * ASSERT and is evaluated on both debug and non-debug kernels.
  */
 
-#if defined(__STDC__)
 extern int assfail(const char *, const char *, int);
 #define VERIFY(EX) ((void)((EX) || assfail(#EX, __FILE__, __LINE__)))
 #if DEBUG
 #define ASSERT(EX) ((void)((EX) || assfail(#EX, __FILE__, __LINE__)))
 #else
 #define ASSERT(x)  ((void)0)
 #endif
-#else   /* defined(__STDC__) */
-extern int assfail();
-#define VERIFY(EX) ((void)((EX) || assfail("EX", __FILE__, __LINE__)))
-#if DEBUG
-#define ASSERT(EX) ((void)((EX) || assfail("EX", __FILE__, __LINE__)))
-#else
-#define ASSERT(x)  ((void)0)
-#endif
-#endif  /* defined(__STDC__) */
 
 /*
  * Assertion variants sensitive to the compilation data model
  */
 #if defined(_LP64)