nvme-multipath: don't call blk_mark_disk_dead in nvme_mpath_remove_disk

nvme_mpath_remove_disk is called after del_gendisk, at which point a
blk_mark_disk_dead call doesn't make any sense.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Keith Busch <kbusch@kernel.org>

drivers/nvme/host/multipath.c

@@ -884,7 +884,6 @@ void nvme_mpath_remove_disk(struct nvme_ns_head *head)
 {
 	if (!head->disk)
 		return;
-	blk_mark_disk_dead(head->disk);
 	/* make sure all pending bios are cleaned up */
 	kblockd_schedule_work(&head->requeue_work);
 	flush_work(&head->requeue_work);