Remove the definitions of NIL (now unused) and NULL (defined elsewhere).

usr.bin/make/sprite.h

@@ -1,4 +1,4 @@
-/*	$NetBSD: sprite.h,v 1.9 2005/08/05 00:53:18 christos Exp $	*/
+/*	$NetBSD: sprite.h,v 1.10 2008/12/20 17:42:01 dsl Exp $	*/
 
 /*
  * Copyright (c) 1988, 1989, 1990, 1993
@@ -114,17 +114,6 @@ typedef int  ReturnStatus;
 #define	FAILURE			0x00000001
 
 
-/*
- * A nil pointer must be something that will cause an exception if
- * referenced.  There are two nils: the kernels nil and the nil used
- * by user processes.
- */
-
-#define NIL 		~0
-#ifndef NULL
-#define NULL	 	0
-#endif /* NULL */
-
 /*
  * ClientData is an uninterpreted word.  It is defined as an int so that
  * kdbx will not interpret client data as a string. The