Revert "Mark "neutron-tempest-plugin-designate-scenari" as non voting"

This reverts commit ce5687b215fa0d43ef371c8de7def95caf9ce7fc.

Reason for revert: The WSGI fix has merged on Designate

Change-Id: I6e6e2e4c84383f3368999846c182924f77d02110
1 file changed