[hackers] [sbase] No need to use USED() in arg.h for sbase || sin

[git]

commit c55948ba91c7daab7a269ba8c70c7432d93a1b87
Author: sin <s...@2f30.org>
Date:   Wed Nov 6 13:22:13 2013 +0000

    No need to use USED() in arg.h for sbase
    
    Tested on Linux and OpenBSD (with gcc and pcc).

diff --git a/arg.h b/arg.h
index 2b189fe..2009b70 100644
--- a/arg.h
+++ b/arg.h
@@ -8,8 +8,6 @@
 
 extern char *argv0;
 
-#define USED(x)                ((void)(x))
-
 /* use main(int argc, char *argv[]) */
 #define ARGBEGIN       for (argv0 = *argv, argv++, argc--;\
                                        argv[0] && argv[0][1]\
@@ -32,10 +30,7 @@ extern char *argv0;
                                        switch (_argc)
 
 #define ARGEND                 }\
-                               USED(_argc);\
-                       }\
-                       USED(argv);\
-                       USED(argc);
+                       }
 
 #define ARGC()         _argc