Protocol header sequence checking is supported in the ethdev library,
the application does not need to do it again.
Coverity issue: 381396
Fixes: 52e2e7edcf48 ("app/testpmd: add protocol-based buffer split")
Signed-off-by: Yuan Wang <yuanx.wang@intel.com>
Acked-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>