md/raid5: remove redundant check in stripe_add_to_batch_list()

The stripe_add_to_batch_list() function is called only if
stripe_can_batch() returned true, so there is no need for double check.
Signed-off-by: NRoman Gushchin <klamm@yandex-team.ru>
Cc: Neil Brown <neilb@suse.com>
Cc: linux-raid@vger.kernel.org
Signed-off-by: NNeilBrown <neilb@suse.com>

drivers/md/raid5.c

@@ -772,8 +772,6 @@ static void stripe_add_to_batch_list(struct r5conf *conf, struct stripe_head *sh
 	int hash;
 	int dd_idx;
 
-	if (!stripe_can_batch(sh))
-		return;
 	/* Don't cross chunks, so stripe pd_idx/qd_idx is the same */
 	tmp_sec = sh->sector;
 	if (!sector_div(tmp_sec, conf->chunk_sectors))