block: remove per-queue plugging

Code has been converted over to the new explicit on-stack plugging,
and delay users have been converted to use the new API for that.
So lets kill off the old plugging along with aops->sync_page().

Signed-off-by: Jens Axboe <jaxboe@fusionio.com>

1 files changed, 0 insertions, 4 deletions

diff --git a/drivers/block/drbd/drbd_req.c b/drivers/block/drbd/drbd_req.c
index 11a75d32a2e2..ad3fc6228f27 100644
--- a/drivers/block/drbd/drbd_req.c
+++ b/drivers/block/drbd/drbd_req.c
@@ -960,10 +960,6 @@ allocate_barrier:
                         bio_endio(req->private_bio, -EIO);
         }
 
-        /* we need to plug ALWAYS since we possibly need to kick lo_dev.
-         * we plug after submit, so we won't miss an unplug event */
-        drbd_plug_device(mdev);
-
         return 0;
 
 fail_conflicting: