Small cleanups

A few cleanups:
* remove docs environment, this repo has not docs
* Cleanup setup.cfg, remove obsolete sections
* Update docs requirements to newer versions working properly with
  python3, releasenotes are build using python3

Change-Id: I721b81e422501b841107d4d2d96458759448a326

setup.cfg

@@ -14,15 +14,6 @@ classifier =
   Intended Audience :: Information Technology
   Topic :: Utilities
 
-[build_sphinx]
-all_files = 1
-build-dir = doc/build
-source-dir = doc/source
-
-[global]
-setup-hooks =
-    pbr.hooks.setup_hook
-
 [files]
 data_files =
     config = config/*
@@ -30,9 +21,6 @@ data_files =
     vars = vars/*
     usr/local/share/ansible/roles = roles/*
 
-[wheel]
-universal = 1
-
 [pbr]
 skip_authors = True
 skip_changelog = True

test-requirements.txt

@@ -1,5 +1,5 @@
-openstackdocstheme>=1.11.0  # Apache-2.0
+openstackdocstheme>=2.0.0  # Apache-2.0
 
-sphinx>=1.6.2 # BSD
-reno>=1.8.0  # Apache-2.0
+sphinx>=2.0.0,!=2.1.0 # BSD
+reno>=2.5.0  # Apache-2.0
 jinja2

tox.ini

@@ -28,11 +28,6 @@ basepython = python3
 deps = bindep
 commands = bindep test
 
-[testenv:docs]
-basepython = python3
-commands = python setup.py build_sphinx
-
-
 [testenv:releasenotes]
 basepython = python3
 whitelist_externals = bash