s390/dcssblk:: don't call bio_split_to_limits

s390 iterates over the bio using bio_for_each_segment and doesn't need
any bio splitting.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Alexander Gordeev <agordeev@linux.ibm.com>
Link: https://lore.kernel.org/r/20230123075356.60847-1-hch@lst.deSigned-off-by: Jens Axboe <axboe@kernel.dk>

drivers/s390/block/dcssblk.c

@@ -864,10 +864,6 @@ dcssblk_submit_bio(struct bio *bio)
 	unsigned long source_addr;
 	unsigned long bytes_done;
 
-	bio = bio_split_to_limits(bio);
-	if (!bio)
-		return;
-
 	bytes_done = 0;
 	dev_info = bio->bi_bdev->bd_disk->private_data;
 	if (dev_info == NULL)