Since we're not using XML anymore, remove now unused binary package
dependencies.
Add python-devel for RPM platforms.
Note that this test is self-testing - the new config will be used
directly in the OpenStack CI system.
Change-Id: If0195ba62a24ca1ce23b827bb2282099597b38e2
We do not need to build and publish the DocBook XML content anymore,
everything is frozen and in the process of moving to projects. Remove
set up for building of DocBook content.
This leaves the XML files still in tree, we can remove them later.
The DocBook XML gates are still setup, so some tox environments have
been made a noop.
Require openstack-doc-tools 1.0.0 which removes DocBook XML support.
Also, drop swagger building, this is not needed anymore.
Change-Id: I276953013a518a09dabb89bb8f80ef7739b4491b