remove RestorePieceState function

osu.Game.Rulesets.Taiko/Objects/Drawables/DrawableDrumRoll.cs

@@ -77,8 +77,9 @@ namespace osu.Game.Rulesets.Taiko.Objects.Drawables
             OnNewResult += onNewResult;
         }
 
-        protected override void RestorePieceState()
+        protected override void OnApply()
         {
+            base.OnApply();
             updateColour();
             Height = HitObject.IsStrong ? TaikoStrongableHitObject.DEFAULT_STRONG_SIZE : TaikoHitObject.DEFAULT_SIZE;
         }

osu.Game.Rulesets.Taiko/Objects/Drawables/DrawableDrumRollTick.cs

@@ -43,10 +43,6 @@ namespace osu.Game.Rulesets.Taiko.Objects.Drawables
             base.OnApply();
 
             IsFirstTick.Value = HitObject.FirstTick;
-        }
-
-        protected override void RestorePieceState()
-        {
             Size = new Vector2(HitObject.IsStrong ? TaikoStrongableHitObject.DEFAULT_STRONG_SIZE : TaikoHitObject.DEFAULT_SIZE);
         }
 

osu.Game.Rulesets.Taiko/Objects/Drawables/DrawableHit.cs

@@ -56,15 +56,9 @@ namespace osu.Game.Rulesets.Taiko.Objects.Drawables
 
         protected override void OnApply()
         {
+            base.OnApply(); // it's empty actually
             type.BindTo(HitObject.TypeBindable);
-            // this doesn't need to be run inline as RecreatePieces is called by the base call below.
-            type.BindValueChanged(_ => Scheduler.AddOnce(RestorePieceState));
 
-            base.OnApply();
-        }
-
-        protected override void RestorePieceState()
-        {
             if (editorMode)
             {
                 // We in Editor Mode so the performance is not critical and we can recreate piece.

osu.Game.Rulesets.Taiko/Objects/Drawables/DrawableSwell.cs

@@ -144,8 +144,9 @@ namespace osu.Game.Rulesets.Taiko.Objects.Drawables
                 Origin = Anchor.Centre,
             });
 
-        protected override void RestorePieceState()
+        protected override void OnApply()
         {
+            base.OnApply();
             Size = baseSize = new Vector2(TaikoHitObject.DEFAULT_SIZE);
         }
 

osu.Game.Rulesets.Taiko/Objects/Drawables/DrawableSwellTick.cs

@@ -43,7 +43,6 @@ namespace osu.Game.Rulesets.Taiko.Objects.Drawables
 
         public override bool OnPressed(KeyBindingPressEvent<TaikoAction> e) => false;
 
-        protected override void RestorePieceState() { }
         protected override SkinnableDrawable OnLoadCreateMainPiece()
             => new SkinnableDrawable(new TaikoSkinComponentLookup(TaikoSkinComponents.DrumRollTick), _ => new TickPiece());
     }

osu.Game.Rulesets.Taiko/Objects/Drawables/DrawableTaikoHitObject.cs

@@ -150,17 +150,6 @@ namespace osu.Game.Rulesets.Taiko.Objects.Drawables
                 Content.Add(MainPiece = drawable);
         }
 
-        protected override void OnApply()
-        {
-            base.OnApply();
-
-            // TODO: now it fixed, yes?
-            // TODO: THIS CANNOT BE HERE, it makes pooling pointless (see https://github.com/ppy/osu/issues/21072).
-            RestorePieceState();
-        }
-
-        protected abstract void RestorePieceState();
-
         /// <summary>Creates <c>MainPiece</c>. Calls only on <c>load</c> or in EditorMode.</summary>
         protected abstract SkinnableDrawable OnLoadCreateMainPiece();
     }

osu.Game.Rulesets.Taiko/Objects/Drawables/DrawableTaikoStrongableHitObject.cs

@@ -27,11 +27,8 @@ namespace osu.Game.Rulesets.Taiko.Objects.Drawables
 
         protected override void OnApply()
         {
-            isStrong.BindTo(HitObject.IsStrongBindable);
-            // this doesn't need to be run inline as RecreatePieces is called by the base call below.
-            isStrong.BindValueChanged(_ => Scheduler.AddOnce(RestorePieceState));
-
             base.OnApply();
+            isStrong.BindTo(HitObject.IsStrongBindable);
         }
 
         protected override void OnFree()