mlxsw: spectrum_switchdev: Do not set 'multicast_enabled' twice

The function mlxsw_sp_port_mc_disabled_set() sets
'bridge_device->multicast_enabled' twice. Remove the unnecessary setting.
Signed-off-by: Amit Cohen <amcohen@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c

@@ -870,8 +870,6 @@ static int mlxsw_sp_port_mc_disabled_set(struct mlxsw_sp_port *mlxsw_sp_port,
 			return err;
 	}
 
-	bridge_device->multicast_enabled = !mc_disabled;
-
 	return 0;
 }