ethdev: remove legacy N-tuple filter type support

ethdev: remove legacy N-tuple filter type support

Instead of N-tuple filter RTE flow API should be used.

Preserve struct rte_eth_ntuple_filter in ethdev API since
the structure and related defines are used in flow classify
library and a number of drivers.

Preserve RTE_ETH_FILTER_NTUPLE because of usage in drivers.

Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Acked-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
Acked-by: Haiyue Wang <haiyue.wang@intel.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>