cleanup code a bit

lib/main.dart

@@ -1,21 +1,11 @@
-import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
-import 'package:sqflite_common_ffi/sqflite_ffi.dart';
 import 'src/services/deck_repository.dart';
 import 'src/screens/start_screen.dart';
 
 void main() async {
   WidgetsFlutterBinding.ensureInitialized();
 
-  if (!kIsWeb &&
-      (defaultTargetPlatform == TargetPlatform.windows ||
-          defaultTargetPlatform == TargetPlatform.linux ||
-          defaultTargetPlatform == TargetPlatform.macOS)) {
-    sqfliteFfiInit();
-    databaseFactory = databaseFactoryFfi;
-  }
-
   runApp(
     Provider<DeckRepository>(
       create: (_) => DeckRepository(),