Remove unrequired messaging setup task file

The messaging setup happens as part of the playbook.
This task file never gets called, so can be removed.

Change-Id: I1aba4c5a26ad0e85e0cb001a0863681acd6f6008

tasks/keystone_messaging_setup.yml

@@ -1,31 +0,0 @@
----
-# Copyright 2014, 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.
-
-- name: Ensure Rabbitmq vhost
-  rabbitmq_vhost:
-    name: "{{ keystone_rabbitmq_vhost }}"
-    state: "present"
-  delegate_to: "{{ groups['rabbitmq_all'][0] }}"
-
-- name: Ensure rabbitmq user
-  rabbitmq_user:
-    user: "{{ keystone_rabbitmq_userid }}"
-    password: "{{ keystone_rabbitmq_password }}"
-    vhost: "{{ keystone_rabbitmq_vhost }}"
-    configure_priv: ".*"
-    read_priv: ".*"
-    write_priv: ".*"
-    state: "present"
-  delegate_to: "{{ groups['rabbitmq_all'][0] }}"