scsi: block: Remove BLK_SCSI_MAX_CMDS

This was used for the table based SCSI passthough permission checking that
is gone now.

Link: https://lore.kernel.org/r/20210729064845.1044147-3-hch@lst.deSigned-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

include/linux/blkdev.h

@@ -271,9 +271,6 @@ enum blk_queue_state {
 #define BLK_TAG_ALLOC_FIFO 0 /* allocate starting from 0 */
 #define BLK_TAG_ALLOC_RR 1 /* allocate starting from last allocated tag */
 
-#define BLK_SCSI_MAX_CMDS	(256)
-#define BLK_SCSI_CMD_PER_LONG	(BLK_SCSI_MAX_CMDS / (sizeof(long) * 8))
-
 /*
  * Zoned block device models (zoned limit).
  *