separator: kill that useless thing

Just use the format strings dude. :)

components/separator.c

@@ -1,11 +0,0 @@
-/* See LICENSE file for copyright and license details. */
-#include <stdio.h>
-
-#include "../util.h"
-#include "../slstatus.h"
-
-const char *
-separator(const char *separator)
-{
-    return separator;
-}