IHasCalculatedProperty interface should not give the isUpdate() check…

… command.

Because stage info doesn't know if the property is updated or not. It depends on the property (e.g. lyric) in the beatmap also.
If the user wants to re-calculate the stage info after doing some changes in the editor, then just call this method.

osu.Game.Rulesets.Karaoke/Stages/Infos/Preview/PreviewStageInfo.cs

@@ -40,32 +40,12 @@ public class PreviewStageInfo : StageInfo, IHasCalculatedProperty
 
     #region Validation
 
-    private bool calculatedPropertyIsUpdated;
-
-    /// <summary>
-    /// Mark the stage info's calculated property as invalidate.
-    /// </summary>
-    /// <returns></returns>
-    public void TriggerRecalculate()
-    {
-        calculatedPropertyIsUpdated = false;
-    }
-
-    /// <summary>
-    /// Check if the stage info's calculated property is calculated and the value is the latest.
-    /// </summary>
-    /// <returns></returns>
-    public bool IsUpdated() => calculatedPropertyIsUpdated;
-
     /// <summary>
     /// If the calculated property is not updated, then re-calculate the property inside the stage info in the <see cref="KaraokeBeatmapProcessor"/>
     /// </summary>
     /// <param name="beatmap"></param>
     public void ValidateCalculatedProperty(IBeatmap beatmap)
     {
-        if (IsUpdated())
-            return;
-
         var calculator = new PreviewStageTimingCalculator(beatmap, StageDefinition);
 
         // also, clear all mapping in the layout and re-create one.
@@ -85,8 +65,6 @@ public void ValidateCalculatedProperty(IBeatmap beatmap)
             });
             layoutCategory.AddToMapping(element, lyric);
         }
-
-        calculatedPropertyIsUpdated = true;
     }
 
     #endregion

osu.Game.Rulesets.Karaoke/Stages/Infos/Types/IHasCalculatedProperty.cs

@@ -8,18 +8,6 @@ namespace osu.Game.Rulesets.Karaoke.Stages.Infos.Types;
 
 public interface IHasCalculatedProperty
 {
-    /// <summary>
-    /// Mark the stage info's calculated property as invalidate.
-    /// </summary>
-    /// <returns></returns>
-    void TriggerRecalculate();
-
-    /// <summary>
-    /// Check if the stage info's calculated property is calculated and the value is the latest.
-    /// </summary>
-    /// <returns></returns>
-    bool IsUpdated();
-
     /// <summary>
     /// If the calculated property is not updated, then re-calculate the property inside the stage info in the <see cref="KaraokeBeatmapProcessor"/>
     /// </summary>