[fix] Don't ask for oca not implemented question

conf/openerp-server.conf.j2

@@ -2,8 +2,8 @@
 ; This is the password that allows database operations:
 without_demo = all
 admin_passwd = {{ admin_password }}
-db_host = false
-db_port = false
+db_host = localhost
+db_port = 5432
 db_user = odoo
 db_password = {{ dbpass }}
 addons_path = {{ source_path }}addons

manifest.json

@@ -40,10 +40,6 @@
     }, {
       "name": "oca",
       "type": "boolean",
-      "ask": {
-        "en": "Use OCA repository to get community bugfixes ?",
-        "fr": "Utiliser les dépots OCA pour bénéficier des bugfix communautaires ?"
-      },
       "default": false
     }, {
       "name": "admin_password",