deleting outdated role

roles/upgrade-lustre/tasks/main.yml

----
-- name: ensure a list of packages installed
-  yum:
-    name: "{{ packages }}"
-    state: latest
-  vars:
-    packages:
-    - lustre-client
-    - kmod-lustre-client
-  become: true
-  become_user: root
-  register: update_done
-
-- name: reboot the machine if an upgrade occured
-  reboot:
-  when: update_done.changed
-  become: true
-  become_user: root