nvme: correct comment about nvme_ns_remove()

The comment in nvme_mpath_remove_disk() references nvme_remove_ns(), which
should be nvme_ns_remove().

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: John Garry <john.g.garry@oracle.com>
Signed-off-by: Keith Busch <kbusch@kernel.org>

Author: johnpgarry

drivers/nvme/host/multipath.c

@@ -1300,7 +1300,7 @@ void nvme_mpath_remove_disk(struct nvme_ns_head *head)
 	mutex_lock(&head->subsys->lock);
 	/*
 	 * We are called when all paths have been removed, and at that point
-	 * head->list is expected to be empty. However, nvme_remove_ns() and
+	 * head->list is expected to be empty. However, nvme_ns_remove() and
 	 * nvme_init_ns_head() can run concurrently and so if head->delayed_
 	 * removal_secs is configured, it is possible that by the time we reach
 	 * this point, head->list may no longer be empty. Therefore, we recheck