Merge "Remove install unnecessary packages"

Author: Zuul

tox.ini

@@ -111,7 +111,6 @@ commands =
 [testenv:docs]
 deps =
   -c{env:UPPER_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/master}
-  -r{toxinidir}/requirements.txt
   -r{toxinidir}/doc/requirements.txt
 commands =
   sphinx-build -a -E -W -d doc/build/doctrees -b html doc/source doc/build/html