scsi: libsas: Remove a set-but-not-used variable

This was detected by building with W=1.
Signed-off-by: NBart Van Assche <bart.vanassche@wdc.com>
Reviewed-by: NChristoph Hellwig <hch@lst.de>
Reviewed-by: NHannes Reinecke <hare@suse.de>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/libsas/sas_scsi_host.c

@@ -855,7 +855,6 @@ int sas_target_alloc(struct scsi_target *starget)
 int sas_slave_configure(struct scsi_device *scsi_dev)
 {
 	struct domain_device *dev = sdev_to_domain_dev(scsi_dev);
-	struct sas_ha_struct *sas_ha;
 
 	BUG_ON(dev->rphy->identify.device_type != SAS_END_DEVICE);
 
@@ -864,8 +863,6 @@ int sas_slave_configure(struct scsi_device *scsi_dev)
 		return 0;
 	}
 
-	sas_ha = dev->port->ha;
-
 	sas_read_port_mode_page(scsi_dev);
 
 	if (scsi_dev->tagged_supported) {