Clean up role tests

Now that we're using the general templates, we can slim down
the role test definitions. We can also remove tests which are
not being watched, or which are fundamentally broken. With
this we can also remove unused scripts/plays.

We do the following:

1. We remove the 'ssl' job, given that the person working on
   that is no longer doing so, and no-one else has picked up
   the work.
2. We promote the centos-7 distro_install job, given that it
   is now working.

Change-Id: I39058d02fabcc2801f3d3a8a5ac910668ad5c1f5

tox.ini

@@ -101,14 +101,6 @@ commands =
     bash -c "{toxinidir}/tests/common/test-ansible-functional.sh"
 
 
-[testenv:ssl]
-setenv =
-    {[testenv]setenv}
-    ANSIBLE_PARAMETERS=-vvv -e galera_use_ssl=True
-commands =
-    bash -c "{toxinidir}/tests/common/test-ansible-functional.sh"
-
-
 [testenv:linters]
 commands =
     bash -c "{toxinidir}/tests/common/test-ansible-env-prep.sh"

zuul.d/jobs.yaml

@@ -1,21 +0,0 @@
----
-# Copyright 2017, Rackspace US, Inc.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-- job:
-    name: openstack-ansible-designate-ssl-nv
-    parent: openstack-ansible-functional-ubuntu-xenial
-    voting: false
-    vars:
-      tox_env: ssl

zuul.d/project.yaml

@@ -20,14 +20,11 @@
       - release-notes-jobs-python3
     check:
       jobs:
-        - openstack-ansible-designate-ssl-nv
         - openstack-ansible-functional-distro_install-ubuntu-xenial
-          # NOTE(hwoarang) Centos7 is having some troubles with repo dependencies
+        - openstack-ansible-functional-distro_install-centos-7
-          # so disabling until it's investigated.
-        - openstack-ansible-functional-distro_install-centos-7:
-            voting: false
         - openstack-ansible-functional-distro_install-opensuse-423
     gate:
       jobs:
         - openstack-ansible-functional-distro_install-ubuntu-xenial
+        - openstack-ansible-functional-distro_install-centos-7
         - openstack-ansible-functional-distro_install-opensuse-423