Remove RDO repo from role

Now that the external repository management is done in pip-install
role, we don't need this wiring anymore.

Everything will be consistent across all the roles that include
pip-install.

Change-Id: Ied9e3ec9797501baf1922602ec205b3892553d19
(cherry picked from commit c445069023)

tasks/swift_install.yml

@@ -20,17 +20,6 @@
   when:
     - ansible_pkg_mgr == 'apt'
 
-- name: Install RDO package
-  package:
-    name: "{{ rdo_package }}"
-    state: "present"
-  register: install_cloud_rdo_package
-  until: install_cloud_rdo_package | success
-  retries: 5
-  delay: 2
-  when:
-    - ansible_pkg_mgr == 'yum'
-
 - name: Install distro packages
   package:
     name: "{{ item }}"

vars/redhat-7.yml

@@ -31,4 +31,3 @@ swift_distro_packages:
   - which
 
 swift_rsync_service_name: rsyncd
-rdo_package: "https://rdoproject.org/repos/rdo-release.rpm"