scsi: smartpqi: minor driver cleanup

 - remove debug code that is no longer necessary.
   - Some WARN_ON checks were removed because the driver continues
     to function when the conditions are met.
 - remove a MACRO that is no longer used.
 - remove unnecessary multi-line statements.

Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Signed-off-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
diff --git a/drivers/scsi/smartpqi/smartpqi.h b/drivers/scsi/smartpqi/smartpqi.h
index e74d3ed..7a95868 100644
--- a/drivers/scsi/smartpqi/smartpqi.h
+++ b/drivers/scsi/smartpqi/smartpqi.h
@@ -1053,7 +1053,7 @@ enum pqi_ctrl_mode {
 #define BMIC_WRITE_HOST_WELLNESS		0xa5
 #define BMIC_CACHE_FLUSH			0xc2
 
-#define SA_CACHE_FLUSH				0x01
+#define SA_CACHE_FLUSH				0x1
 
 #define MASKED_DEVICE(lunid)			((lunid)[3] & 0xc0)
 #define CISS_GET_BUS(lunid)			((lunid)[7] & 0x3f)