Remove non-kubeadm deployment (#3811)

* Remove non-kubeadm deployment

* More cleanup

* More cleanup

* More cleanup

* More cleanup

* Fix gitlab

* Try stop gce first before absent to make the delete process work

* More cleanup

* Fix bug with checking if kubeadm has already run

* Fix bug with checking if kubeadm has already run

* More fixes

* Fix test

* fix

* Fix gitlab checkout untill kubespray 2.8 is on quay

* Fixed

* Add upgrade path from non-kubeadm to kubeadm. Revert ssl path

* Readd secret checking

* Do gitlab checks from v2.7.0 test upgrade path to 2.8.0

* fix typo

* Fix CI jobs to kubeadm again. Fix broken hyperkube path

* Fix gitlab

* Fix rotate tokens

* More fixes

* More fixes

* Fix tokens

inventory/sample/group_vars/all/all.yml

@@ -42,16 +42,10 @@ bin_dir: /usr/local/bin
 ## If set the possible values are either 'gce', 'aws', 'azure', 'openstack', 'vsphere', 'oci', or 'external'
 ## When openstack is used make sure to source in the openstack credentials
 ## like you would do when using nova-client before starting the playbook.
-## Note: The 'external' cloud provider is not supported. 
+## Note: The 'external' cloud provider is not supported.
 ## TODO(riverzhang): https://kubernetes.io/docs/tasks/administer-cluster/running-cloud-controller/#running-cloud-controller-manager
 #cloud_provider:
 
-## kubeadm deployment mode
-kubeadm_enabled: true
-
-# Skip alert information
-skip_non_kubeadm_warning: false
-
 ## Set these proxy values in order to update package manager and docker daemon to use proxies
 #http_proxy: ""
 #https_proxy: ""