md: don't initialize queue limits

Initial queue limits are now set from ->run.  Remove the superfluous
initialization in md_alloc and level_store.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed--by: Song Liu <song@kernel.org>
Tested-by: Song Liu <song@kernel.org>
Signed-off-by: Song Liu <song@kernel.org>
Link: https://lore.kernel.org/r/20240303140150.5435-10-hch@lst.de

Author: Christoph Hellwig

drivers/md/md.c

@@ -4164,7 +4164,6 @@ level_store(struct mddev *mddev, const char *buf, size_t len)
 		mddev->in_sync = 1;
 		del_timer_sync(&mddev->safemode_timer);
 	}
-	blk_set_stacking_limits(&mddev->queue->limits);
 	pers->run(mddev);
 	set_bit(MD_SB_CHANGE_DEVS, &mddev->sb_flags);
 	if (!mddev->thread)
@@ -5879,7 +5878,6 @@ struct mddev *md_alloc(dev_t dev, char *name)
 	disk->private_data = mddev;
 
 	mddev->queue = disk->queue;
-	blk_set_stacking_limits(&mddev->queue->limits);
 	blk_queue_write_cache(mddev->queue, true, true);
 	disk->events |= DISK_EVENT_MEDIA_CHANGE;
 	mddev->gendisk = disk;