Allow automatic toc to be disabled

In some cases, a user may want to disable the automatic table of
contents generation in the body of the page. This patch adds
a ``display_toc`` option into the theme options list that will
disable the automatic TOC in the documentation body.

Closes-Bug: 1613761

Change-Id: I508b46c5ba6a022ee4ad2687cb4e44ed449ca4fe

openstackdocstheme/theme/openstackdocs/localtoc.html

@@ -1,6 +1,4 @@
-{%- if theme_sidebar_mode == 'toctree' %}
+{%- if theme_sidebar_mode == 'toctree' and theme_display_toc %}
-{%- if display_toc %}
 <h5><a href="{{ pathto(master_doc) }}">Contents</a></h5>
 {{ toc }}
 {%- endif %}
-{%- endif %}

openstackdocstheme/theme/openstackdocs/theme.conf

@@ -6,3 +6,4 @@ pygments_style = native
 [options]
 analytics_tracking_code = UA-17511903-1
 sidebar_mode = toctree
+display_toc = True

releasenotes/notes/allow-disabling-toc-in-body-d98d3a6e633fa28e.yaml

@@ -0,0 +1,14 @@
+---
+features:
+  - |
+    The automatic table of contents that appears in the body of the
+    documentation can be disabled by setting ``display_toc`` to ``False`` in
+    the ``html_theme_options`` option in ``conf.py``.
+
+    For example:
+
+    .. code-block:: python
+
+      html_theme_options = {
+           "display_toc": False,
+      }