Remove dead code from kubeadm-etcd (#7470)

(cherry picked from commit aa086e5407)

roles/kubernetes/master/tasks/kubeadm-etcd.yml

@@ -12,20 +12,6 @@
   tags:
     - network
 
-- name: Ensure etcdctl binary is installed
-  include_tasks: "{{ role_path }}/../../etcd/tasks/install_host.yml"
-  vars:
-    etcd_cluster_setup: true
-  when: etcd_deployment_type == "host" and not etcd_kubeadm_enabled
-
-- name: Ensure etcdctl binary is installed
-  include_tasks: "{{ role_path }}/../../etcd/tasks/install_etcdctl_docker.yml"
-  vars:
-    etcd_cluster_setup: true
-    etcd_retries: 4
-  when:
-    - etcd_deployment_type == "docker" and not etcd_kubeadm_enabled
-
 - name: Ensure etcdctl script is installed
   import_role:
     name: etcdctl