Cleanup: remove all cloud_provider related tasks & files

Signed-off-by: ChengHao Yang <17496418+tico88612@users.noreply.github.com>

roles/kubernetes/node/tasks/main.yml

@@ -137,53 +137,6 @@
   tags:
     - kube-proxy
 
-- name: Check cloud provider credentials
-  include_tasks: "cloud-credentials/{{ cloud_provider }}-credential-check.yml"
-  when:
-    - cloud_provider is defined
-    - cloud_provider in [ 'openstack', 'azure', 'vsphere' ]
-  tags:
-    - cloud-provider
-    - facts
-
-- name: Test if openstack_cacert is a base64 string
-  set_fact:
-    openstack_cacert_is_base64: "{% if openstack_cacert is search('^([A-Za-z0-9+/]{4})*([A-Za-z0-9+/]{3}= | [A-Za-z0-9+/]{2}==)?$') %}true{% else %}false{% endif %}"
-  when:
-    - cloud_provider is defined
-    - cloud_provider == 'openstack'
-    - openstack_cacert is defined
-    - openstack_cacert | length > 0
-
-
-- name: Write cacert file
-  copy:
-    src: "{{ openstack_cacert if not openstack_cacert_is_base64 else omit }}"
-    content: "{{ openstack_cacert | b64decode if openstack_cacert_is_base64 else omit }}"
-    dest: "{{ kube_config_dir }}/openstack-cacert.pem"
-    group: "{{ kube_cert_group }}"
-    mode: "0640"
-  when:
-    - cloud_provider is defined
-    - cloud_provider == 'openstack'
-    - openstack_cacert is defined
-    - openstack_cacert | length > 0
-  tags:
-    - cloud-provider
-
-- name: Write cloud-config
-  template:
-    src: "cloud-configs/{{ cloud_provider }}-cloud-config.j2"
-    dest: "{{ kube_config_dir }}/cloud_config"
-    group: "{{ kube_cert_group }}"
-    mode: "0640"
-  when:
-    - cloud_provider is defined
-    - cloud_provider in [ 'openstack', 'azure', 'vsphere', 'aws', 'gce' ]
-  notify: Node | restart kubelet
-  tags:
-    - cloud-provider
-
 - name: Install kubelet
   import_tasks: kubelet.yml
   tags: