Change heketi-tear-down to run on nodes instead of localhost delegate_to

contrib/network-storage/heketi/roles/tear-down/tasks/main.yml

@@ -49,8 +49,3 @@
   command: "{{ bin_dir }}/kubectl delete secret {{ secrets.stdout|from_json|json_query(storage_query) }}"
   when: "storage_query is defined"
   ignore_errors: true
-- name: "Prepare cluster disks."
-  include_tasks: "disks.yml"
-  with_items: "{{ groups['heketi-node'] }}"
-  loop_control:
-    loop_var: "node"