Remove Kubernetes Dashboard support (#12858)

roles/kubernetes-apps/ansible/tasks/main.yml

@@ -109,15 +109,3 @@
     - netchecker-server-clusterrolebinding.yml.j2
     - netchecker-server-deployment.yml.j2
     - netchecker-server-svc.yml.j2
-
-- name: Kubernetes Apps | Dashboard
-  command:
-    cmd: "{{ kubectl_apply_stdin }}"
-    stdin: "{{ lookup('template', 'dashboard.yml.j2') }}"
-  delegate_to: "{{ groups['kube_control_plane'][0] }}"
-  run_once: true
-  vars:
-    k8s_namespace: "{{ dashboard_namespace }}"
-  when: dashboard_enabled
-  tags:
-    - dashboard