net/mlx5e: Remove unneeded netif_set_real_num_tx_queues

The number of queues is now updated by mlx5e_update_netdev_queues in a
centralized way, when no channels are active. Remove an extra occurrence
of netif_set_real_num_tx_queues to prepare it for the next commit.
Signed-off-by: Maxim Mikityanskiy <maximmi@mellanox.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>

drivers/net/ethernet/mellanox/mlx5/core/en_main.c

@@ -2942,17 +2942,11 @@ static void mlx5e_switch_priv_channels(struct mlx5e_priv *priv,
 				       mlx5e_fp_preactivate preactivate)
 {
 	struct net_device *netdev = priv->netdev;
-	int new_num_txqs;
 	int carrier_ok;
 
-	new_num_txqs = new_chs->num * new_chs->params.num_tc;
-
 	carrier_ok = netif_carrier_ok(netdev);
 	netif_carrier_off(netdev);
 
-	if (new_num_txqs < netdev->real_num_tx_queues)
-		netif_set_real_num_tx_queues(netdev, new_num_txqs);
-
 	mlx5e_deactivate_priv_channels(priv);
 	mlx5e_close_channels(&priv->channels);