530ba016ad
Comment 7887b3f41adab0644dc9a32ac91196179208c78f invented a wrong way which violates the recent PTI. This commit clean them up and follow the new PTL for documentation build. The detail is described in the following links: https://governance.openstack.org/tc/reference/project-testing-interface.html http://lists.openstack.org/pipermail/openstack-dev/2017-December/125710.html pbr autodoc is now converted into sphinxcontrib-autodoc. http://lists.openstack.org/pipermail/openstack-dev/2018-April/129147.html Change-Id: I158440ef40426593981774307af982028573042b