Remove epel form bootstrap-host installation.

Change-Id: I5d8dcb2e0ba3c4d60edc0db89758ce66bcb58a94
Related-bug: 1670012

tests/roles/bootstrap-host/tasks/install_packages.yml

@@ -74,25 +74,14 @@
     - ansible_pkg_mgr == 'apt'
 
 # CentOS
-- block:
-  - 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
-
-  - name: Install epel package
-    package:
-      name: "{{ epel_package }}"
-      state: "present"
-    register: install_epel_package
-    until: install_epel_package | success
-    retries: 5
-    delay: 2
-
+- 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'
 

tests/roles/bootstrap-host/vars/redhat.yml

@@ -14,7 +14,6 @@
 # limitations under the License.
 
 rdo_package: "https://rdoproject.org/repos/openstack-ocata/rdo-release-ocata.rpm"
-epel_package: "epel-release"
 
 packages_install:
   - '@Development Tools'
@@ -26,9 +25,7 @@ packages_install:
   - lvm2
   - python
   - python-devel
-  - python-ipython
   - tmux
-  - vconfig
   - vim
   - xfsprogs