block: remove the discard_granularity check in __blkdev_issue_discard

We now set a default granularity in the queue limits API, so don't
bother with this extra check.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20240506042027.2289826-2-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>

block/blk-lib.c

@@ -46,13 +46,6 @@ int __blkdev_issue_discard(struct block_device *bdev, sector_t sector,
 	if (!bdev_max_discard_sectors(bdev))
 		return -EOPNOTSUPP;
 
-	/* In case the discard granularity isn't set by buggy device driver */
-	if (WARN_ON_ONCE(!bdev_discard_granularity(bdev))) {
-		pr_err_ratelimited("%pg: Error: discard_granularity is 0.\n",
-				   bdev);
-		return -EOPNOTSUPP;
-	}
-
 	bs_mask = (bdev_logical_block_size(bdev) >> 9) - 1;
 	if ((sector | nr_sects) & bs_mask)
 		return -EINVAL;