[firewall] firewall don't need re2o anymore

host_vars/routeur-daniel.adm.crans.org/firewall.yml

 ---
 loc_service_firewall:
-  re2o:
-    hostname: "{{ query('ldap', 'ip', 'c3po', 'adm') | ipv4 | first }}"
-    user: services
-    password: "{{ vault.re2o_service_password }}"
   git:
     remote: https://gitlab.adm.crans.org/nounous/firewall.git
-    version: cachan
+    version: main

host_vars/routeur-jack.adm.crans.org/firewall.yml

 ---
 loc_service_firewall:
-  re2o:
-    hostname: "{{ query('ldap', 'ip', 'c3po', 'adm') | ipv4 | first }}"
-    user: services
-    password: "{{ vault.re2o_service_password }}"
   git:
     remote: https://gitlab.adm.crans.org/nounous/firewall.git
-    version: cachan
+    version: main

host_vars/routeur-sam.adm.crans.org/firewall.yml

 ---
 loc_service_firewall:
-  re2o:
-    hostname: "{{ query('ldap', 'ip', 'c3po', 'adm') | ipv4 | first }}"
-    user: services
-    password: "{{ vault.re2o_service_password }}"
   git:
     remote: https://gitlab.adm.crans.org/nounous/firewall.git
-    version: cachan
+    version: main