Use only yum Ansible in CI setup

So for months now Ansible sourced from yum and Ansible sourced
from pip could exist on the same machine and function just fine.
But as of a few days ago in the Newton and now rhos-10 CI pipeline
the dependency loading semantics have changed and this is no longer
possible.

This commit switches to relying on the package manager version.

Change-Id: I21737c6f6900f3ed4011fe7de91fc34a1d984fc3

ansible/oooq/roles/pre-install-setup/defaults/main.yml

@@ -0,0 +1,3 @@
+browbeat_dependencies:
+                  - rsync
+                  - ansible

ansible/oooq/roles/pre-install-setup/tasks/main.yml

@@ -1,8 +1,9 @@
 ---
 
-- name: Make sure rsync is installed
-  yum: name=rsync state=present
+- name: Make sure dependencies ar installed
+  package: name={{item}} state=present
   become: true
+  with_items: "{{ browbeat_dependencies }}"
 
 - name: Copy browbeat to the undercloud
   synchronize: "src={{ local_working_dir }}/browbeat dest={{ ansible_env.HOME }}/ use_ssh_args=yes"
@@ -21,15 +22,3 @@
 
 - name: Load CI vars
   include_vars: "{{ lookup('env','HW_ENV_DIR') }}/all.yml"
-
-- name: Install Pip
-  retries: 10
-  delay: 60
-  until: pip.rc == 0
-  register: pip
-  shell: curl "https://bootstrap.pypa.io/get-pip.py" -o "get-pip.py"; sudo python get-pip.py
-  become: true
-
-- name: Install Ansible
-  pip: name=ansible state=present
-  become: true