Revert "Merge pull request '리듬게임' (#5) from CatsRhythmGame into main"

This reverts commit 58385bf819, reversing
changes made to 8369e2ab51.

Assets/02_Scripts/Core/Util.cs

@@ -1,43 +0,0 @@
-using System;
-using System.Threading;
-using UnityEngine;
-
-public static class Util
-{
- /// 특정 시간(초) 후에 액션을 실행
-    public static async Awaitable RunDelayed(float delay, Action action, CancellationToken token = default)
-    {
-        try
-        {
-            // 유니티 전용 비동기 대기
-            await Awaitable.WaitForSecondsAsync(delay, token);
-
-            // 함수 실행
-            action?.Invoke();
-        }
-        catch (OperationCanceledException)
-        {
-            // 취소되었을 때의 처리 (필요 시)
-        }
-    }
-
-    /// 다음 프레임에 액션을 실행
-    public static async Awaitable RunNextFrame(Action action, CancellationToken token = default)
-    {
-        try
-        {
-            await Awaitable.EndOfFrameAsync(token);
-            action?.Invoke();
-        }
-        catch (OperationCanceledException) { }
-    }
-
-    public static float NormalizeAngle(float angle)
-    {
-        while (angle > 180)
-            angle -= 360;
-        while (angle < -180)
-            angle += 360;
-        return angle;
-    }
-}