Rename docs job

Follow job rename in openstack-manuals, remove now unused
checkbuild environment.

Depends-On: https://review.opendev.org/676956
Change-Id: Icf5ab7c00a17cda9c6f54dbdf6f53d165d87da3c

.zuul.yaml

@@ -1,13 +1,13 @@
 # Zuulv3 CI setup for OpenStack.
-# The build-tox-manuals-checkbuild job is defined in openstack-manuals.
+# The build-tox-manuals-publishdocs job is defined in openstack-manuals.
 
 - project:
     check:
       jobs:
-        - build-tox-manuals-checkbuild
+        - build-tox-manuals-publishdocs
     gate:
       jobs:
-        - build-tox-manuals-checkbuild
+        - build-tox-manuals-publishdocs
     promote:
       jobs:
         - promote-openstack-manuals

README.rst

@@ -52,7 +52,8 @@ gating jobs.
 
 If you like to run individual tests, run:
 
- * ``tox -e checkbuild`` - to actually build all guides
+ * ``tox -e publishdocs`` - to actually build all guides (used in CI
+   for building and publishing)
  * ``tox -e upstream-slides`` - build the Upstream training
  * ``tox -e training-slides`` - build the Training guides
 

tox.ini

@@ -1,6 +1,6 @@
 [tox]
 minversion = 3.1.1
-envlist = checkbuild
+envlist = publishdocs
 skipsdist = True
 ignore_basepython_conflict = True
 
@@ -27,16 +27,6 @@ commands = {posargs}
 extension = .rst,.txt
 ignore-path = doc/upstream-training/build/*,doc/training-guides/build/*
 
-[testenv:checkbuild]
-commands =
-  {[testenv:upstream-slides]commands}
-  {[testenv:training-slides]commands}
-  # Publish for check site
-  mkdir -p publish-docs/html/upstream-training
-  mkdir -p publish-docs/html/training-guides
-  rsync -av doc/upstream-training/build/slides/ publish-docs/html/upstream-training/
-  rsync -av doc/training-guides/build/slides/ publish-docs/html/training-guides/
-
 [testenv:generatepot-training]
 # Generate POT files for translation
 commands =