net/ipn3ke: delete identical branch
net/ipn3ke: delete identical branch

Whether the if statement is true or not, the operation is identical.
It is unnecessary to check the if statement, so just delete the if
statement.

Coverity issue: 337928
Fixes: c820468ac99c ("net/ipn3ke: support TM")
Cc: stable@dpdk.org

Signed-off-by: Andy Pei <495968cb2b3cf2ab5bd53dc54ba9a3450dc45709@intel.com>
Acked-by: Rosen Xu <8f603db01337dbfe2ce4743ebc0cdbcec6fa456f@intel.com>

john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk