playbooks/apollo: Remove the flyspray role

Remove the flyspray role from apollo. There are still leftovers and nginx
is configured to reply with the maintenance mode, in case someone tries to
access flyspray through apollo.

playbooks/apollo.yml

@@ -49,7 +49,6 @@
       security_tracker_nginx_conf: '/etc/nginx/nginx.d/security-tracker.conf'
       security_tracker_dir: "/srv/http/security-tracker"
       tags: ["security_tracker"]
-    - { role: flyspray, tags: ["flyspray"] }
     - { role: mailman, mailman_domain: "lists.archlinux.org", tags: ["mailman"] }
     - { role: patchwork, tags: ["patchwork"] }
     - { role: kanboard, tags: ["kanboard"] }