Remove some unneccessary assignments to argc

openssl.c and ts.c assign the value of opt_num_rest() to argc, but then
only use the value once.
Reviewed-by: NRichard Levitte <levitte@openssl.org>

apps/openssl.c

@@ -491,9 +491,8 @@ int help_main(int argc, char **argv)
             return 0;
         }
     }
-    argc = opt_num_rest();
 
-    if (argc != 0) {
+    if (opt_num_rest() != 0) {
         BIO_printf(bio_err, "Usage: %s\n", prog);
         return 1;
     }

apps/ts.c

@@ -319,8 +319,7 @@ int ts_main(int argc, char **argv)
             break;
         }
     }
-    argc = opt_num_rest();
-    if (mode == OPT_ERR || argc != 0)
+    if (mode == OPT_ERR || opt_num_rest() != 0)
         goto opthelp;
 
     /* Seed the random number generator if it is going to be used. */