1 files changed, 0 insertions, 90 deletions
diff --git a/Library/PackageCache/com.unity.timeline@1.2.13/Runtime/Utilities/TimelineUndo.cs b/Library/PackageCache/com.unity.timeline@1.2.13/Runtime/Utilities/TimelineUndo.cs
deleted file mode 100644
index b6392f0..0000000
--- a/Library/PackageCache/com.unity.timeline@1.2.13/Runtime/Utilities/TimelineUndo.cs
+++ /dev/null
@@ -1,90 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Diagnostics;
-using UnityEngine.Playables;
-
-#if UNITY_EDITOR
-using UnityEditor;
-#endif
-
-namespace UnityEngine.Timeline
-{
-    static class TimelineUndo
-    {
-        public static void PushDestroyUndo(TimelineAsset timeline, Object thingToDirty, Object objectToDestroy, string operation)
-        {
-#if UNITY_EDITOR
-            if (objectToDestroy == null || !DisableUndoGuard.enableUndo)
-                return;
-
-            if (thingToDirty != null)
-                EditorUtility.SetDirty(thingToDirty);
-
-            if (timeline != null)
-                EditorUtility.SetDirty(timeline);
-
-            Undo.DestroyObjectImmediate(objectToDestroy);
-#else
-            if (objectToDestroy != null)
-                Object.Destroy(objectToDestroy);
-#endif
-        }
-
-        [Conditional("UNITY_EDITOR")]
-        public static void PushUndo(Object thingToDirty, string operation)
-        {
-#if UNITY_EDITOR
-            if (thingToDirty != null && DisableUndoGuard.enableUndo)
-            {
-                var track = thingToDirty as TrackAsset;
-                if (track != null)
-                    track.MarkDirty();
-
-                EditorUtility.SetDirty(thingToDirty);
-                Undo.RegisterCompleteObjectUndo(thingToDirty, "Timeline " + operation);
-            }
-#endif
-        }
-
-        [Conditional("UNITY_EDITOR")]
-        public static void RegisterCreatedObjectUndo(Object thingCreated, string operation)
-        {
-#if UNITY_EDITOR
-            if (DisableUndoGuard.enableUndo)
-            {
-                Undo.RegisterCreatedObjectUndo(thingCreated, "Timeline " + operation);
-            }
-#endif
-        }
-
-#if UNITY_EDITOR
-        public struct DisableUndoGuard : IDisposable
-        {
-            internal static bool enableUndo = true;
-            static readonly Stack<bool> m_UndoStateStack = new Stack<bool>();
-            bool m_Disposed;
-            public DisableUndoGuard(bool disable)
-            {
-                m_Disposed = false;
-                m_UndoStateStack.Push(enableUndo);
-                enableUndo = !disable;
-            }
-
-            public void Dispose()
-            {
-                if (!m_Disposed)
-                {
-                    if (m_UndoStateStack.Count == 0)
-                    {
-                        Debug.LogError("UnMatched DisableUndoGuard calls");
-                        enableUndo = true;
-                        return;
-                    }
-                    enableUndo = m_UndoStateStack.Pop();
-                    m_Disposed = true;
-                }
-            }
-        }
-#endif
-    }
-}