scsi: qla2xxx: remove redundant null check on tgt

An earlier commit ed7fb808477b846bb2 ("scsi: qla2xxx: Remove redundant
wait when target is stopped.") removed a null check on ha->tgt.tgt_ops
and replaced it with a new check that null checked tgt, thus making the
subsequent null check on tgt totally redundant. Remove it.

Detected by CoverityScan, CID#1440452 ("Logically Dead Code")
Signed-off-by: NColin Ian King <colin.king@canonical.com>
Acked-by: NHimanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/qla2xxx/qla_target.c

@@ -5521,12 +5521,6 @@ void qlt_async_event(uint16_t code, struct scsi_qla_host *vha,
 	if (!tgt || tgt->tgt_stop || tgt->tgt_stopped)
 		return;
 
-	if (unlikely(tgt == NULL)) {
-		ql_dbg(ql_dbg_tgt, vha, 0xe03a,
-		    "ASYNC EVENT %#x, but no tgt (ha %p)\n", code, ha);
-		return;
-	}
-
 	if (((code == MBA_POINT_TO_POINT) || (code == MBA_CHG_IN_CONNECTION)) &&
 	    IS_QLA2100(ha))
 		return;