Description of problem:

According to https://bugzilla.redhat.com/show_bug.cgi?id=1578204#c5, and etcd is running as static pod, so etcd system container code should be cleaned up.

$ git describe
openshift-ansible-3.10.0-0.47.0


$ grep system_container * -r|grep -v openshift-ansible.spec
roles/etcd/tasks/runtime.yml:  when: etcd_container_service.status.ActiveState == 'active' and not l_is_etcd_system_container
roles/etcd/tasks/runtime.yml:  when: etcd_container_service.status.ActiveState == 'active' and l_is_etcd_system_container
roles/etcd/tasks/version_detect.yml:    - not l_is_etcd_system_container | bool and not l_etcd_static_pod | bool
roles/etcd/tasks/version_detect.yml:    - not l_is_etcd_system_container | bool and not l_etcd_static_pod | bool
roles/etcd/tasks/version_detect.yml:    - l_is_etcd_system_container | bool and not l_etcd_static_pod | bool
roles/etcd/tasks/version_detect.yml:    - l_is_etcd_system_container | bool and not l_etcd_static_pod
roles/etcd/defaults/main.yaml:l_is_etcd_system_container: "{{ (openshift_use_etcd_system_container | default(openshift_use_system_containers | default(false)) | bool) }}"
roles/etcd/defaults/main.yaml:r_etcd_common_etcd_runtime: "{{ 'runc' if l_is_etcd_system_container else ('static_pod' if l_etcd_static_pod else ('docker' if openshift_is_containerized else 'host')) }}"
roles/openshift_node/tasks/systemd_units.yml:  import_tasks: node_system_container.yml



Version-Release number of the following components:
rpm -q openshift-ansible
rpm -q ansible
ansible --version

How reproducible:

Steps to Reproduce:
1.
2.
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Actual results:
Please include the entire output from the last TASK line through the end of output if an error is generated

Expected results:

Additional info:
Please attach logs from ansible-playbook with the -vvv flag