Revert "Improve compatibility with connection delegation"

This reverts commit 3d405dfd52.

See [1], thia ahould be fixed in 2.9.10 and we must either remove or
refactor this code to move past ansible 2.9.9

Change-Id: Ibf636be010edb30e4f186f4d8e411f514ff1b58d

handlers/main.yml

@@ -64,8 +64,6 @@
   changed_when: start_new_cluster.rc == 3
   register: start_new_cluster
   delegate_to: "{{ galera_server_bootstrap_node }}"
-  vars:
-    ansible_host: "{{ hostvars[galera_server_bootstrap_node]['ansible_host'] }}"
   run_once: true
   when:
     - galera_install_server | bool
@@ -83,8 +81,6 @@
   retries: 6
   delay: 5
   delegate_to: "{{ item }}"
-  vars:
-    ansible_host: "{{ hostvars[item]['ansible_host'] }}"
   when:
     - galera_install_server | bool
     - hostvars[item]['galera_cluster_ready'] is defined

zuul.d/project.yaml

@@ -23,6 +23,8 @@
       - release-notes-jobs-python3
     check:
       jobs:
+        - openstack-ansible-functional-centos-8:
+            voting: false
         - openstack-ansible-functional-centos-7-ssl
         - openstack-ansible-functional-ubuntu-bionic-ssl
     experimental: