Follow new infra setup for translations, see spec
http://specs.openstack.org/openstack-infra/infra-specs/specs/translation_setup.html
for full details.
This basically renames
oslo.service/locale/oslo.service.pot to
oslo_service/locale/oslo_service.pot. For this we need to update
setup.cfg.
Update also domain name in i18n.py.
The project has no translations currently, let's remove the outdated
pot files, the updated scripts work without them. So, we can just
delete the files and once there are translations, an updated pot file
together with translations can be imported automatically.
Change-Id: I4bbe492faee1c04ede16b3a4e9da2a9521eecccd
ChangBo Guo(gcb)