pipeline: fix logically dead code
pipeline: fix logically dead code

This patches fixes the coverity issue of logically dead code.

Coverity issue: 323523
Fixes: 96303217a606 ("pipeline: add symmetric crypto table action")

Signed-off-by: Fan Zhang <b46d470dc79aa6fd718cd24d07380f6203b7fc3c@intel.com>

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