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: Idf7a2029a4003b11f91ce661fb9397d119833865

openstack/openstack-ansible-rsyslog_server,openstack/openstack-ansible-rsyslog_server