Don't add keys to root by default

roles/ubuntu_base/tasks/users.yml

@@ -13,9 +13,3 @@
     user: "{{ item.key }}"
     key: "{{ item.value.key }}"
   with_dict: "{{ users | default({}) }}"
-
-- name: "Add ssh authorized_keys to root user"
-  authorized_key:
-    user: "root"
-    key: "{{ item.value.key }}"
-  with_dict: "{{ users | default({}) }}"