scsi: csiostor: Remove unused variable 'n'

Variable 'n' is just being incremented and it's never used anywhere
else. Remove it.

Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Link: https://lore.kernel.org/r/20221101123235.52152-1-colin.i.king@gmail.com


Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>