[Configuration] Remove the build documentation.

Remove the build of the documentation from tox, the project doesn't use
sphinx. That fix an error during the build of the documentation, because
the configuration file for sphinx is not found.

Change-Id: I577a05c2f7916bfca637ecb4451abbee5bd7714e
(cherry picked from commit 4776547196)

test-requirements.txt

@@ -1,5 +1,3 @@
-pre-commit>=1.10 # MIT License
-# this is required for the docs build jobs
-reno>=2.5.0  # Apache-2.0
-sphinx>=1.6.2 # BSD
-openstackdocstheme>=1.17.0 # Apache-2.0
+pre-commit==1.13.0 # MIT License
+hacking!=0.13.0,<0.14,>=0.12.0 # Apache-2.0
+bashate>=0.5.1  # Apache-2.0

tox.ini

@@ -1,6 +1,6 @@
 [tox]
-minversion = 1.6
-envlist = docs, linters
+minversion = 2.0
+envlist = linters
 skipdist = True
 
 [testenv]
@@ -18,9 +18,6 @@ whitelist_externals = bash
 deps = bindep
 commands = bindep test
 
-[testenv:docs]
-commands = python setup.py build_sphinx
-
 [testenv:bashate]
 envdir = {toxworkdir}/linters
 commands =

zuul.d/layout.yaml

@@ -2,7 +2,6 @@
 - project:
     templates:
       - check-requirements
-      - release-notes-jobs-python3
     check:
       jobs:
         - tripleo-ci-centos-7-scenario000-multinode-oooq-container-updates