Prepare for a test release

lib/main.dart

@@ -2,7 +2,6 @@ import 'dart:convert';
 import 'dart:io';
 
 import 'package:flutter/material.dart';
-import 'package:flutter_secure_storage/flutter_secure_storage.dart';
 import 'package:liteauthconfig/models/appconfig.dart';
 import 'package:liteauthconfig/pages/devicelist.dart';
 import 'package:liteauthconfig/l10n/app_localizations.dart';
@@ -16,10 +15,6 @@ void main() async {
   SystemTheme.fallbackColor = const Color(0xFF4C1D95);
   await SystemTheme.accentColor.load();
 
-  final secureStorage = FlutterSecureStorage(
-    aOptions: AndroidOptions.biometric()
-  );
-
   final appDocsDir = await getApplicationDocumentsDirectory();
 
   var configFile = File(p.join(appDocsDir.path, "app.json"));