Reuse Continuwuity removed-variable validation

roles/custom/matrix-continuwuity/tasks/validate_config.yml

@@ -37,16 +37,7 @@
     - {'old': 'matrix_continuwuity_docker_image_registry_prefix_upstream', 'new': 'matrix_continuwuity_container_image_registry_prefix_upstream'}
     - {'old': 'matrix_continuwuity_docker_image_registry_prefix_upstream_default', 'new': 'matrix_continuwuity_container_image_registry_prefix_upstream_default'}
     - {'old': 'matrix_continuwuity_container_image_force_pull', 'new': '<removed> (the new community.docker.docker_image_pull module handles this natively)'}
-
-- name: (Deprecation) Catch and report removed Continuwuity settings
-  ansible.builtin.fail:
-    msg: >-
-      Your configuration contains a removed variable (`{{ item }}`). Please remove it from your configuration file (vars.yml).
-      Official Continuwuity images no longer support registration without a challenge.
-      If registration is enabled, configure a registration token, ReCAPTCHA, or required email verification.
-  when: "lookup('ansible.builtin.varnames', ('^' + item + '$'), wantlist=True) | length > 0"
-  with_items:
-    - matrix_continuwuity_config_yes_i_am_very_very_sure_i_want_an_open_registration_server_prone_to_abuse
+    - {'old': 'matrix_continuwuity_config_yes_i_am_very_very_sure_i_want_an_open_registration_server_prone_to_abuse', 'new': '<removed> (official images no longer support registration without a challenge)'}
 
 - name: Fail if Continuwuity ReCAPTCHA is only partially configured
   ansible.builtin.fail: