receive-pack: fix misleading namespace/.have comment

The comment claims that we handle alternate ".have" lines
through this function, but that hasn't been the case since
85f2510 (write_head_info(): handle "extra refs" locally,
2012-01-06).

Signed-off-by: Jeff King <[email protected]>
Signed-off-by: Junio C Hamano <[email protected]>

Author: peff

builtin/receive-pack.c

@@ -261,10 +261,7 @@ static int show_ref_cb(const char *path_full, const struct object_id *oid,
 	/*
 	 * Advertise refs outside our current namespace as ".have"
 	 * refs, so that the client can use them to minimize data
-	 * transfer but will otherwise ignore them. This happens to
-	 * cover ".have" that are thrown in by add_one_alternate_ref()
-	 * to mark histories that are complete in our alternates as
-	 * well.
+	 * transfer but will otherwise ignore them.
 	 */
 	if (!path)
 		path = ".have";