As part of an effort to align the packaging documentation (packaging.python.org) with the CPython docs, PyPA has extracted the theme used in the CPython documentation into a separate repository and package (https://github.com/python/python-docs-theme).

This bug is to track removing the now duplicate theme code from CPython and relying on the externalized version.


Context links:
1. https://mail.python.org/pipermail/python-dev/2017-May/148029.html
2. https://github.com/pypa/python-packaging-user-guide/pull/305