scsi: a100u2w: Remove unused variable 'bios_phys'

scsi: a100u2w: Remove unused variable 'bios_phys'

Fixes the following W=1 kernel build warning(s):

 drivers/scsi/a100u2w.c: In function ‘inia100_probe_one’:
 drivers/scsi/a100u2w.c:1092:8: warning: variable ‘bios_phys’ set but not used [-Wunused-but-set-variable]

Link: https://lore.kernel.org/r/20210312094738.2207817-25-lee.jones@linaro.org
Cc: "James E.J. Bottomley" <jejb@linux.ibm.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: Doug Ledford <dledford@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: linux-scsi@vger.kernel.org
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>