match_push_refs(): nobody sets src->peer_ref anymore

In ancient times, we used to disallow the same source ref to be
pushed to more than one places, e.g. "git push there master:master
master:naster" was disallowed.  We later lifted this restriction
with db27ee6 (send-pack: allow the same source to be pushed
more than once., 2005-08-06) and there no longer is anybody that
sets peer_ref for the source side of the ref list in the push
codepath since then.

Remove one leftover no-op in a loop that iterates over the source
side of ref list (i.e. our local ref) to see if it can/should be
sent to a matching destination ref while skipping ones that is
marked with peer_ref (which will never exist, so we do not skip
anything).

Signed-off-by: Junio C Hamano <gitster@pobox.com>

remote.c

@@ -1227,9 +1227,6 @@ int match_push_refs(struct ref *src, struct ref **dst,
 		const struct refspec *pat = NULL;
 		char *dst_name;
 
-		if (ref->peer_ref)
-			continue;
-
 		dst_name = get_ref_match(rs, nr_refspec, ref, send_mirror, FROM_SRC, &pat);
 		if (!dst_name)
 			continue;