Fix build jobs

The buildpdf did not run since the parent job was mistyped, fix parent
job name and rename to follow conventions on job names.

Cleanup jobs in tox.ini:
Docs environment is now run by PTI, so only run building the html for
docs directory.

Change-Id: Ibd0e731d9b090e0c444a8e18caa3ad3153f8aa4a

.zuul.yaml

@@ -1,7 +1,7 @@
 # parent job is defined in openstack-manuals
 - job:
-    name: build-tox-manuals-buildpdf
-    parent: build-tox-manuals
+    name: openstackdocsstheme-tox-manuals-buildpdf
+    parent: build-tox-manuals-base
     vars:
       tox_envlist: buildpdf
 
@@ -13,11 +13,11 @@
       - publish-openstack-docs-pti
     check:
       jobs:
-        - build-tox-manuals-buildpdf
+        - openstackdocsstheme-tox-manuals-buildpdf
         - openstack-tox-pep8
     gate:
       jobs:
-        - build-tox-manuals-buildpdf
+        - openstackdocsstheme-tox-manuals-buildpdf
         - openstack-tox-pep8
     post:
       jobs:

tox.ini

@@ -30,9 +30,6 @@ basepython = python3
 commands =
   rm -rf doc/build api-ref/build
   sphinx-build -a -E -W -d doc/build/doctrees -b html doc/source doc/build/html
-  sphinx-build -a -E -W -d doc/build/doctrees -b latex doc/source doc/build/pdf
-  make -C doc/build/pdf
-  sphinx-build -a -E -W -d api-ref/build/doctrees -b html api-ref/source api-ref/build/html
 
 [testenv:html]
 commands =