002956ee54
The build-sphinx job uses compile and test bindep profiles, update tox-docs to use the same. tox-docs used to run tools/test_setup due to inheriting from unittests, remove that inheritance since we do not need it. Update role bindep to have a default for zuul_work_dir. If this role is used without unittests, zuul_work_dir is unset. Change-Id: I5df8b9cd90bf5e4f4c84c7b4514fb9c575898e31