remove unnecessary override

app/lib/features/bangs/data/models/bang.dart

@@ -113,9 +113,6 @@ class Bang with FastEquatable implements Insertable<Bang> {
 
   Map<String, dynamic> toJson() => _$BangToJson(this);
 
-  @override
-  bool get cacheHash => true;
-
   @override
   List<Object?> get hashParameters => [
     group,

app/lib/features/bangs/data/models/bang_data.dart

@@ -24,9 +24,6 @@ class BangData extends Bang {
     this.icon,
   }) : frequency = frequency ?? 0;
 
-  @override
-  bool get cacheHash => true;
-
   @override
   List<Object?> get hashParameters => [
     ...super.hashParameters,

app/lib/features/bangs/data/models/search_history_entry.dart

@@ -11,9 +11,6 @@ class SearchHistoryEntry with FastEquatable {
     required this.searchDate,
   });
 
-  @override
-  bool get cacheHash => true;
-
   @override
   List<Object?> get hashParameters => [searchQuery, trigger, searchDate];
 }