remove dead endpoint staging mode (obsoleted by demo mode)

lib/model/endpoint_data.dart

@@ -1,18 +1,3 @@
-import 'account_data.dart';
-
-enum EndpointMode { live, stage }
-
-class EndpointOptions {
-  Endpoint live;
-  Endpoint? staged;
-  EndpointOptions({required this.live, required this.staged});
-
-  Endpoint get(EndpointMode mode) {
-    if (staged == null || mode == EndpointMode.live) return live;
-    return staged!;
-  }
-}
-
 class Endpoint {
   String domain;
   String path;
@@ -29,13 +14,5 @@ class EndpointData {
 
   EndpointData._construct();
 
-  EndpointMode getEndpointMode() =>
+  Endpoint nextcloud() => Endpoint(domain: 'cloud.marianum-fulda.de');
-      AccountData().getUsername().startsWith('google')
-      ? EndpointMode.stage
-      : EndpointMode.live;
-
-  Endpoint nextcloud() => EndpointOptions(
-    live: Endpoint(domain: 'cloud.marianum-fulda.de'),
-    staged: Endpoint(domain: 'mhsl.eu', path: '/marianum/marianummobile/cloud'),
-  ).get(getEndpointMode());
 }

lib/view/pages/files/widgets/file_element.dart

@@ -6,7 +6,6 @@ import 'package:nextcloud/nextcloud.dart';
 import '../../../../api/marianumcloud/webdav/queries/list_files/cacheable_file.dart';
 import '../../../../api/marianumcloud/webdav/webdav_api.dart';
 import '../../../../extensions/date_time.dart';
-import '../../../../model/endpoint_data.dart';
 import '../../../../routing/app_routes.dart';
 import '../../../../share_intent/remote_file_ref.dart';
 import '../../../../state/app/modules/nextcloud_capabilities/bloc/nextcloud_capabilities_cubit.dart';
@@ -18,7 +17,6 @@ import '../../../../widget/confirm_dialog.dart';
 import '../../../../widget/demo_restricted.dart';
 import '../../../../widget/details_bottom_sheet.dart';
 import '../../../../widget/downloads/download_trigger.dart';
-import '../../../../widget/info_dialog.dart';
 import '../../../../widget/prompt_dialog.dart';
 import '../../talk/widgets/highlighted_linkify.dart';
 import '../sharing/share_sheet.dart';
@@ -108,13 +106,6 @@ class _FileElementState extends State<FileElement>
       return;
     }
     if (guardDemoAction(context)) return;
-    if (EndpointData().getEndpointMode() == EndpointMode.stage) {
-      InfoDialog.show(
-        context,
-        'Virtuelle Dateien im Staging Prozess können nicht heruntergeladen werden!',
-      );
-      return;
-    }
     if (isDownloading) {
       confirmCancelDownload();
       return;