Remove duplicate gluebuddy playbook

Fixes: d88c0b95 ("Initialize gluebuddy host")

playbooks/gluebuddy.yml

-- name: setup gluebuddy.archlinux.org
-  hosts: gluebuddy.archlinux.org
-  remote_user: root
-  roles:
-    - { role: common }
-    - { role: sshd }
-    - { role: root_ssh }
-    - { role: borg_client, tags: ["borg"] }
-    - { role: sudo }
-    - { role: fail2ban }
-    - { role: prometheus_exporters }
-    - { role: promtail }
-    - { role: gluebuddy }