block: Drop granularity check in queue_limit_discard_alignment()

lim->discard_granularity is always at least SECTOR_SIZE, so drop the
pointless check for granularity less than SECTOR_SIZE.

Signed-off-by: John Garry <john.g.garry@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20241112092144.4059847-1-john.g.garry@oracle.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>

Author: johnpgarry

block/blk-settings.c

@@ -465,8 +465,6 @@ static unsigned int queue_limit_discard_alignment(
 	/* Why are these in bytes, not sectors? */
 	alignment = lim->discard_alignment >> SECTOR_SHIFT;
 	granularity = lim->discard_granularity >> SECTOR_SHIFT;
-	if (!granularity)
-		return 0;
 
 	/* Offset of the partition start in 'granularity' sectors */
 	offset = sector_div(sector, granularity);