Remove ovn4nfv support (#8265)

roles/kubernetes-apps/network_plugin/meta/main.yml

@@ -30,11 +30,6 @@ dependencies:
     tags:
       - kube-router
 
-  - role: kubernetes-apps/network_plugin/ovn4nfv
-    when: kube_network_plugin == 'ovn4nfv'
-    tags:
-      - ovn4nfv
-
   - role: kubernetes-apps/network_plugin/multus
     when: kube_network_plugin_multus
     tags:

roles/kubernetes-apps/network_plugin/ovn4nfv/tasks/main.yml

@@ -1,9 +0,0 @@
----
-- name: ovn4nfv-k8s | Start Resources
-  kube:
-    name: "{{ item.item.name }}"
-    kubectl: "{{ bin_dir }}/kubectl"
-    filename: "{{ kube_config_dir }}/{{ item.item.file }}"
-    state: "latest"
-  with_items: "{{ ovn4nfv_node_manifests.results }}"
-  when: inventory_hostname == groups['kube_control_plane'][0] and not item is skipped