scsi: BusLogic: Remove variable 'adapter_count'

Variable 'adapter_count' 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/20221031160512.872153-1-colin.i.king@gmail.com


Acked-by: Khalid Aziz <khalid@gonehiking.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>