octeon_ep: delete unnecessary napi rollback under set_queues_err in octep_open()

octep_napi_add() and octep_napi_enable() are all after
netif_set_real_num_{tx,rx}_queues() in octep_open(), so it is unnecessary
napi rollback under set_queues_err. Delete them to fix it.

Fixes: 37d79d05 ("octeon_ep: add Tx/Rx processing and interrupt support")
Signed-off-by: Ziyang Xuan <william.xuanziyang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/marvell/octeon_ep/octep_main.c

@@ -527,8 +527,6 @@ static int octep_open(struct net_device *netdev)
 	return 0;
 
 set_queues_err:
-	octep_napi_disable(oct);
-	octep_napi_delete(oct);
 	octep_clean_irqs(oct);
 setup_irq_err:
 	octep_free_oqs(oct);