clean up models

Signed-off-by: dom <githubaccount56556@proton.me>

lib/models_new/video/video_detail/stat.dart

@@ -1,25 +1,13 @@
 import 'package:PiliPlus/models_new/video/video_detail/stat_detail.dart';
 
 class VideoStat extends StatDetail {
-  int? aid;
-  int? nowRank;
-  int? hisRank;
-  int? dislike;
-  String? evaluation;
-
   VideoStat.fromJson(Map<String, dynamic> json) {
-    aid = json['aid'] as int?;
     view = json['view'] as int?;
     danmaku = json['danmaku'] as int?;
     reply = json['reply'] as int?;
     favorite = json['favorite'] as int? ?? 0;
     coin = json['coin'] as num? ?? 0;
     share = json['share'] as int?;
-    nowRank = json['now_rank'] as int?;
-    hisRank = json['his_rank'] as int?;
     like = json['like'] as int? ?? 0;
-    dislike = json['dislike'] as int?;
-    evaluation = json['evaluation'] as String?;
-    vt = json['vt'] as int?;
   }
 }