net/mlx5e: CT: remove set but not used variable 'unnew'
drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:
In function mlx5_tc_ct_parse_match:
drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:699:36: warning:
variable unnew set but not used [-Wunused-but-set-variable]