drbd: Remove unused code

Signed-off-by: NPhilipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: NLars Ellenberg <lars.ellenberg@linbit.com>

drivers/block/drbd/drbd_nl.c

@@ -2388,15 +2388,6 @@ int drbd_adm_invalidate(struct sk_buff *skb, struct genl_info *info)
 	return 0;
 }
 
-static int drbd_bmio_set_susp_al(struct drbd_conf *mdev)
-{
-	int rv;
-
-	rv = drbd_bmio_set_n_write(mdev);
-	drbd_suspend_al(mdev);
-	return rv;
-}
-
 static int drbd_adm_simple_request_state(struct sk_buff *skb, struct genl_info *info,
 		union drbd_state mask, union drbd_state val)
 {