Delete deprecated Hacking in tox.ini
Delete deprecated Hacking in tox.ini

Some hacking have been removed,so we can delete them.
More details:
    https://github.com/openstack-dev/hacking/blob/master/setup.cfg

Change-Id: Ibf373814f583d90d03130188976d805479d0c320

openstack/kuryr,openstack/kuryr