nbd: remove REQ_TYPE_DRV_PRIV leftovers

Disconnects don't use block layer requests these days, so all handling
of private requests is dead code.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
Christoph Hellwig 2017-01-31 16:57:27 +01:00 • committed by Jens Axboe
commit 27410a8927