clean code

PrimaryFormParts/HotSong/PrimaryForm.HotSong.cs

@@ -94,10 +94,6 @@ namespace DualScreenDemo
             int songLimit = ReadHotSongLimit();
             string query = $"SELECT * FROM SongLibrary WHERE `語別` = '{category}' ORDER BY `點播次數` DESC LIMIT {songLimit}";
             var selectedSongs = SearchSongs_Mysql(query);
-            /*var selectedSongs = allSongs.Where(song => song.Category == category)
-                                        .OrderByDescending(song => song.Plays)
-                                        .Take(songLimit)
-                                        .ToList();*/
 
             UpdateSongList(selectedSongs);
         }