[freeradius] Fix mirror configuration

Signed-off-by: Yohann D'ANELLO <ynerant@crans.org>

plays/freeradius.yml

@@ -12,7 +12,6 @@
   vars:
     certbot: '{{ loc_certbot | default(glob_certbot | default([])) }}'
     freeradius: '{{ glob_freeradius | default({}) | combine(loc_freeradius | default({})) }}'
-    mirror: '{{ glob_mirror | default({}) | combine(loc_mirror | default({})) }}'
   roles:
     - certbot
     - freeradius

roles/freeradius/tasks/main.yml

 ---
 - name: Add buster-backports to apt sources
   apt_repository:
-    repo: deb http://{{ mirror.name }}/debian buster-backports main
+    repo: deb {{ debian_mirror }} buster-backports main
     state: present
 
 - name: Pin freeradius from backports