scsi: dpt_i2o: remove redundant null check on array device

The null check on pHba->channel[chan].device is redundant because
device is an array and hence can never be null. Remove the check.

Detected by CoverityScan, CID#115362 ("Array compared against 0")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/dpt_i2o.c

@@ -1169,11 +1169,6 @@ static struct adpt_device* adpt_find_device(adpt_hba* pHba, u32 chan, u32 id, u6
 	if(chan < 0 || chan >= MAX_CHANNEL)
 		return NULL;
 	
-	if( pHba->channel[chan].device == NULL){
-		printk(KERN_DEBUG"Adaptec I2O RAID: Trying to find device before they are allocated\n");
-		return NULL;
-	}
-
 	d = pHba->channel[chan].device[id];
 	if(!d || d->tid == 0) {
 		return NULL;