scsi: aacraid: remove redundant zero check on ret

The check for ret being zero is redundant as a few statements earlier we
break out of the while loop if ret is non-zero. Thus we can remove the
zero check and also the dead-code non-zero case too.

Detected by CoverityScan, CID#1411632 ("Logically Dead Code")

Signed-off-by: Colin Ian King <[e-mail]>
Acked-by: Dave Carroll <[e-mail]>
Signed-off-by: Martin K. Petersen <[e-mail]>

drivers/scsi/aacraid/commsup.c

···
 			 && (now.tv_usec > (1000000 / HZ)))
 				difference = (((1000000 - now.tv_usec) * HZ)
 				  + 500000) / 1000000;
-			else if (ret == 0) {
-
+			else {
 				if (now.tv_usec > 500000)
 					++now.tv_sec;
 
···
 					ret = aac_send_hosttime(dev, &now);
 
 				difference = (long)(unsigned)update_interval*HZ;
-			} else {
-				/* retry shortly */
-				difference = 10 * HZ;
 			}
 			next_jiffies = jiffies + difference;
 			if (time_before(next_check_jiffies,next_jiffies))