Remove mandatory user groups

This triggers a change on every run even though there wasn't one.

roles/users/defaults/main.yaml

@@ -2,4 +2,3 @@
 user_default_shell: /bin/bash
 user_default_groups:
   - users
-user_interactive_user_mandatory_groups: users

roles/users/tasks/main.yaml

@@ -31,14 +31,6 @@
   when: users_interactive is defined
   no_log: yes
 
-- name: add users to default groups
-  user:
-    name: "{{ item.name }}"
-    groups: "{{ user_interactive_user_mandatory_groups | default(omit) }}"
-    append: yes
-  with_items: "{{ users_interactive }}"
-  when: users_interactive is defined and user_interactive_user_mandatory_groups is defined
-
 - name: ensure system groups
   group:
     name: "{{ item.name }}"