Remove tripleo jobs from stable/victoria branch

In TripleO, os_tempest is used from master for all
release. It does not make sense to keep running these jobs
in os_tempest for stable/victoria branch.

This job is also based on old zuul parenting work, which are
getting removed via this topic:
https://review.opendev.org/q/topic:post_cleanup_zuul_parenting

c7 jobs are removed long time ago.
So this patch removes these jobs completely.

Signed-off-by: Chandan Kumar (raukadah) <chkumar@redhat.com>
Change-Id: I3c7b1683ccd73f5ccc293d9674b45d41cf4e18d5

zuul.d/jobs.yaml

@@ -1,34 +0,0 @@
----
-# Copyright 2018, Red Hat, 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: tripleo-ci-centos-7-standalone-os-tempest-train
-    parent: tripleo-ci-base-standalone
-    nodeset: single-centos-7-node
-    branches: master
-    override-checkout: 'stable/train'
-    vars:
-      branch_override: 'stable/train'
-      featureset: '052'
-      featureset_override:
-        use_os_tempest: true
-        tempest_tempest_conf_overrides:
-          auth.use_dynamic_credentials: true
-        tempest_test_whitelist:
-          - 'tempest.api.identity.v3'
-          - 'tempest.scenario.test_server_basic_ops'
-          - 'tempest.api.volume.admin.test_multi_backend'
-          - 'tempest.scenario.test_object_storage_basic_ops'
-

zuul.d/project.yaml

@@ -23,29 +23,8 @@
       - release-notes-jobs-python3
     check:
       jobs:
-        - tripleo-ci-centos-8-content-provider
-        - tripleo-ci-centos-7-content-provider-train
         - openstack-tox-molecule:
             voting: false
             vars:
               tox_environment:
                 PYTEST_REQPASS: 1
-        - tripleo-ci-centos-8-standalone:
-            vars: &consumer_vars
-              consumer_job: true
-              build_container_images: false
-              remove_tags:
-                - build
-            dependencies:
-              - tripleo-ci-centos-8-content-provider
-        - tripleo-ci-centos-7-standalone-os-tempest-train:
-            vars: *consumer_vars
-            dependencies:
-              - tripleo-ci-centos-7-content-provider-train
-    gate:
-      jobs:
-        - tripleo-ci-centos-8-content-provider
-        - tripleo-ci-centos-8-standalone:
-            vars: *consumer_vars
-            dependencies:
-              - tripleo-ci-centos-8-content-provider