docs: Stop building anything but html output

This lets us remove most of the settings in conf.py

Change-Id: I0d06faa2f1736d2e240487ec4e8cf9bc07268724

doc/source/conf.py

@@ -12,10 +12,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import os
-import sys
-
-sys.path.insert(0, os.path.abspath('../..'))
 # -- General configuration ----------------------------------------------------
 
 # Add any Sphinx extension module names here, as strings. They can be
@@ -26,10 +22,6 @@ extensions = [
     'reno.sphinxext',
 ]
 
-# autodoc generation is a bit aggressive and a nuisance when doing heavy
-# text edit cycles.
-# execute "export SPHINX_DEBUG=1" in your terminal to disable
-
 # The suffix of source filenames.
 source_suffix = '.rst'
 
@@ -49,27 +41,3 @@ add_module_names = True
 
 # The name of the Pygments (syntax highlighting) style to use.
 pygments_style = 'sphinx'
-
-# -- Options for HTML output --------------------------------------------------
-
-# The theme to use for HTML and HTML Help pages.  Major themes that come with
-# Sphinx are currently 'default' and 'sphinxdoc'.
-# html_theme_path = ["."]
-# html_theme = '_theme'
-# html_static_path = ['static']
-
-# Output file base name for HTML help builder.
-htmlhelp_basename = '%sdoc' % project
-
-# Grouping the document tree into LaTeX files. List of tuples
-# (source start file, target name, title, author, documentclass
-# [howto/manual]).
-latex_documents = [
-    ('index',
-     '%s.tex' % project,
-     u'%s Documentation' % project,
-     u'OpenStack Foundation', 'manual'),
-]
-
-# Example configuration for intersphinx: refer to the Python standard library.
-#intersphinx_mapping = {'http://docs.python.org/': None}

setup.cfg

@@ -33,6 +33,7 @@ tag_date = 0
 tag_svn_revision = 0
 
 [build_sphinx]
+builders = html
 all-files = 1
 warning-is-error = 1
 source-dir = doc/source