[mailman3] Remove the superuser creation

We don't need the superuser if we knew how to add the permissions to any user.

Signed-off-by: Michal Konecny <mkonecny@redhat.com>

roles/mailman3/defaults/main.yml

@@ -27,9 +27,6 @@ mailman_hyperkitty_admin_db_pass: changeme
 mailman_hyperkitty_db_pass: changeme
 mailman_hyperkitty_cookie_key: changeme
 mailman_hyperkitty_archiver_key: changeme
-mailman_hyperkitty_su_username: mailman
-mailman_hyperkitty_su_email: admin@fedoraproject.org
-mailman_hyperkitty_su_pass: changeme
 mailman_gunicorn_workers: 4
 mailman_domains:
 - lists.example.com

roles/mailman3/tasks/main.yml

@@ -320,29 +320,6 @@
   notify:
     - reload mailmanweb
 
-- name: Create superuser for django-admin
-  ansible.builtin.command:
-    cmd: mailman-web createsuperuser --username "{{ mailman_hyperkitty_su_username }}" --no-input --email "{{ mailman_hyperkitty_su_email }}"
-  become_user: mailman
-  register: command_result
-  tags:
-    - mailman
-    - hyperkitty
-  # Ignore error when the username already exists
-  failed_when:
-    - "'That username is already taken.' not in command_result.stderr"
-    - "command_result.rc != 0"
-
-- name: Change superuser password
-  ansible.builtin.expect:
-    command: mailman-web changepassword {{ mailman_hyperkitty_su_username }}
-    responses:
-      - 'Password:' : {{ mailman_hyperkitty_su_pass }}
-  become_user: mailman
-  tags:
-    - mailman
-    - hyperkitty
-
 #
 # Plug HyperKitty into Mailman
 #