Bot `getversion_svn `and `svn_rev_info` are still in use. They should not be deprecated until the other method always works and this fallback is no longer needed. See https://integration.wikimedia.org/ci/job/tox-jessie/6817/console for example, which contains...
```
07:18:32 /home/jenkins/workspace/tox-jessie$ /home/jenkins/workspace/tox-jessie/.tox/py34/bin/python -m unittest discover -p *tests.py
07:18:33 Processing 0 images...
07:18:33 Could not load cache: UnicodeDecodeError('ascii', b'\x07\xe0\x04\n\x07\x12\x15\x07g\xe5', 1, 2, 'ordinal not in range(128)')
07:18:33 WARNING: /home/jenkins/workspace/tox-jessie/.tox/py34/lib/python3.4/site-packages/pywikibot/version.py:101: DeprecationWarning: pywikibot.version.getversion_svn is deprecated; use getversion_svn_setuptools instead.
07:18:33 (tag, rev, date, hsh) = vcs_func(_program_dir)
07:18:33
07:18:33 WARNING: /home/jenkins/workspace/tox-jessie/.tox/py34/lib/python3.4/site-packages/pywikibot/version.py:252: DeprecationWarning: pywikibot.version.svn_rev_info is deprecated; use getversion_svn_setuptools instead.
07:18:33 tag, rev, date = svn_rev_info(_program_dir)
07:18:33
07:18:33 Could not load cache: UnicodeDecodeError('ascii', b'\x07\xe0\x04\n\x07\x12\x15\x08+a', 1, 2, 'ordinal not in range(128)')
```