Remove unused variable in builtin-fetch find_non_local_tags

Apparently fetch_map is passed through, but is not actually used.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

builtin-fetch.c

@@ -452,8 +452,7 @@ static int add_existing(const char *refname, const unsigned char *sha1,
 	return 0;
 }
 
-static struct ref *find_non_local_tags(struct transport *transport,
-				       struct ref *fetch_map)
+static struct ref *find_non_local_tags(struct transport *transport)
 {
 	static struct path_list existing_refs = { NULL, 0, 0, 0 };
 	struct path_list new_refs = { NULL, 0, 0, 1 };
@@ -547,7 +546,7 @@ static int do_fetch(struct transport *transport,
 	/* if neither --no-tags nor --tags was specified, do automated tag
 	 * following ... */
 	if (tags == TAGS_DEFAULT && autotags) {
-		ref_map = find_non_local_tags(transport, fetch_map);
+		ref_map = find_non_local_tags(transport);
 		if (ref_map) {
 			transport_set_option(transport, TRANS_OPT_DEPTH, "0");
 			fetch_refs(transport, ref_map);