fix: remove obsolete registry login

roles/docker-deployments/tasks/main.yaml

@@ -220,12 +220,6 @@
   with_items:
     - htpasswd
 
-- name: Log into private registry
-  docker_login:
-    registry: registry.atlantishq.de
-    username: docker
-    password: HISTORY_PURGED_SECRET
-
 - name: Deploy compose templates
   community.docker.docker_compose_v2:
     remove_orphans: true