Follow-up to 195155a, drop unused variable from refactor

... and it's obviously spelled "unlimited", *sigh*

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>

src/initctl.c

@@ -177,10 +177,8 @@ static int do_log(svc_t *svc, char *tail)
 /* initctl log [-10] foo */
 static int show_log(char *arg)
 {
-	const char *num = "-10";
 	svc_t *svc;
 
-
 	svc = client_svc_find(arg);
 	if (!svc)
 		return 255;