The use of log translations were removed in upstream
neutron in this patch:
https://review.opendev.org/c/openstack/neutron/+/453355
The same was applied to GBP. However, some files we missing
imports of the oslo_i18n translator, as this is still needed
for other printing (e.g. exceptions, configuration file options, etc.).
Change-Id: Ie8d3d312dcb1b811e76879ec8df2a0cd892ce6d3
16443c3188