Remove legacy centos-8-stream job

Change-Id: Icd33100a80a2a758bc8531cf246ac78ff6e04fa7

zuul.d/jobs.yaml

@@ -1,21 +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: openstack-ansible-deploy-aio_distro_metal_tempestconf-centos-8-stream
-    parent: openstack-ansible-deploy-aio_distro_metal-centos-8-stream
-    pre-run:
-      - zuul.d/playbooks/pre-tempestconf.yml
-    voting: false