blk-cgroup: remove a dead check in blk_throtl_bio

bios must have a valid block group by the time they are submitted.

Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Hellwig 2020-06-27 09:31:59 +02:00 • committed by Jens Axboe
commit a2e83ef9c3