Cleanup py27 support

Make a few cleanups:
- Remove obsolete sections from setup.cfg
- Update requirements, no need for python_version anymore
- Cleanup doc/source/conf.py to remove now obsolete content.
- Remove install_command from tox.ini, the default is fine

Change-Id: Iad458e4e005a50316c55ee3e50dc37cc470ceb51

doc/requirements.txt

@@ -2,7 +2,7 @@
 # of appearance. Changing the order has an impact on the overall integration
 # process, which may cause wedges in the gate later.
 
-sphinx>=1.8.0,!=2.1.0;python_version>='3.4' # BSD
+sphinx>=1.8.0,!=2.1.0 # BSD
 openstackdocstheme>=1.30.0 # Apache-2.0
 sphinxcontrib-svg2pdfconverter>=0.1.0 # BSD
 sphinxcontrib-actdiag>=0.8.5 # BSD

doc/source/conf.py

@@ -11,8 +11,6 @@
 # serve to show the default.
 
 import datetime
-import sys
-import os
 
 # If extensions (or modules to document with autodoc) are in another directory,
 # add these directories to sys.path here. If the directory is relative to the
@@ -26,7 +24,7 @@ import os
 
 # Add any Sphinx extension module names here, as strings. They can be extensions
 # coming with Sphinx (named 'sphinx.ext.*') or your custom ones.
-extensions = ['sphinx.ext.autodoc',
+extensions = [
               'sphinx.ext.todo',
               'sphinx.ext.viewcode',
               'sphinxcontrib.blockdiag',
@@ -129,10 +127,6 @@ html_theme = 'openstackdocs'
 # pixels large.
 #html_favicon = None
 
-# If not '', a 'Last updated on:' timestamp is inserted at every page bottom,
-# using the given strftime format.
-html_last_updated_fmt = '%Y-%m-%d %H:%M'
-
 # If true, SmartyPants will be used to convert quotes and dashes to
 # typographically correct entities.
 #html_use_smartypants = True

setup.cfg

@@ -10,14 +10,3 @@ classifier =
     Intended Audience :: Developers
     License :: OSI Approved :: Apache Software License
     Operating System :: POSIX :: Linux
-
-[build_sphinx]
-all_files = 1
-build-dir = doc/build
-source-dir = doc/source
-
-[pbr]
-warnerrors = True
-
-[bdist_wheel]
-universal = 1

test-requirements.txt

@@ -1,12 +1,12 @@
 # The order of packages is significant, because pip processes them in the order
 # of appearance. Changing the order has an impact on the overall integration
 # process, which may cause wedges in the gate later.
+pbr!=2.1.0,>=2.0.0
 sphinxcontrib-actdiag>=0.8.5 # BSD
 sphinxcontrib-blockdiag>=1.5.5 # BSD
 sphinxcontrib-nwdiag>=0.9.5 # BSD
 sphinxcontrib-seqdiag>=0.8.5 # BSD
 flake8
 doc8>=0.6.0 # Apache-2.0
-pbr!=2.1.0,>=2.0.0
 Pillow>=2.4.0
-sphinx>=1.8.0,!=2.1.0;python_version>='3.4' # BSD
+sphinx>=1.8.0,!=2.1.0 # BSD

tox.ini

@@ -8,7 +8,6 @@ ignore_basepython_conflict = True
 basepython = python3
 usedevelop = True
 setenv = VIRTUAL_ENV={envdir}
-install_command = pip install -U {opts} {packages}
 deps =
   -r{toxinidir}/test-requirements.txt
   -r{toxinidir}/doc/requirements.txt