ublk_drv: remove nr_aborted_queues from ublk_device

ublk_drv: remove nr_aborted_queues from ublk_device

[ Upstream commit ed878d1c1c641c4a6bd366658fc8e6bc842b80d1 ]

No one uses 'nr_aborted_queues' any more, so remove it.

Reviewed-by: ZiyangZhang <ZiyangZhang@linux.alibaba.com>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20230106041711.914434-2-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Stable-dep-of: 73a166d97492 ("ublk_drv: don't probe partitions if the ubq daemon isn't trusted")
Signed-off-by: Sasha Levin <sashal@kernel.org>