Update docs build job

Use tox -e docs for building with the new build-tox-docs template.
Remove the irrelevant files list for docs building, these files
are obsolete, we don't need to special case them anymore.

Enable warnings as error when building in tox.ini.

Depends-On: https://review.openstack.org/594802
Change-Id: I436dc438677e32d044b79d797f95cdf68152d538

1 files changed, 1 insertions, 1 deletions

diff --git a/tox.ini b/tox.ini
index 1ea211747..ddb811fcb 100644
--- a/tox.ini
+++ b/tox.ini
@@ -65,7 +65,7 @@ commands =
 
 [testenv:docs]
 commands =
-  sphinx-build -W -d doc/build/doctrees -b html doc/source/ doc/build/html
+  sphinx-build -E -W -d doc/build/doctrees -b html doc/source/ doc/build/html
 
 [testenv:venv]
 commands = {posargs}