Removed option.

see #554

modoboa_installer/config_dict_template.py

@@ -30,10 +30,6 @@ ConfigDictTemplate = [
     {
         "name": "certificate",
         "values": [
-            {
-                "option": "generate",
-                "default": "true",
-            },
             {
                 "option": "type",
                 "default": "self-signed",

modoboa_installer/scripts/nginx.py

@@ -21,7 +21,7 @@ class Nginx(base.Installer):
 
     def get_template_context(self, app):
         """Additionnal variables."""
-        context = super(Nginx, self).get_template_context()
+        context = super().get_template_context()
         context.update({
             "app_instance_path": (
                 self.config.get(app, "instance_path")),

modoboa_installer/ssl.py

@@ -162,10 +162,6 @@ fi
 def get_backend(config):
     """Return the appropriate backend."""
     cert_type = config.get("certificate", "type")
-    condition = (not config.getboolean("certificate", "generate") and
-                 cert_type != "manual")
-    if condition:
-        return None
     if cert_type == "letsencrypt":
         return LetsEncryptCertificate(config)
     if cert_type == "manual":