Remove temporary fix on label style

moneymgr_mobile/lib/services/storage/expenses.dart

@@ -8,8 +8,7 @@ import 'package:path/path.dart' as p;
 import 'package:path_provider/path_provider.dart';
 import 'package:riverpod_annotation/riverpod_annotation.dart';
 
-part 'expenses.freezed.dart';
-part 'expenses.g.dart';
+part 'expenses.freezed.dart';part 'expenses.g.dart';
 
 typedef ExpensesList = List<Expense>;
 
@@ -54,9 +53,6 @@ abstract class Expense with _$Expense {
     return id.toString();
   }
 
-  /// Get expense label or null if empty
-  String? get labelOrNull => label == "" ? null : label;
-
   /// Get expense date
   DateTime get dateTime => DateTime.fromMillisecondsSinceEpoch(time * 1000);
 }