Removed delegate handles list as that wasn't necessary for anything at all

Assets/Scripts/CallbackHandler.cs

@@ -7,7 +7,6 @@ public abstract class CallbackHandler<THandler>
 {
     private GCHandle selfHandle;
     private GCHandle callbacksHandle;
-    private List<GCHandle> delegateHandles = new List<GCHandle>();
 
     public IntPtr ToIntPtr => callbacksHandle.AddrOfPinnedObject();
     
@@ -23,18 +22,11 @@ public abstract class CallbackHandler<THandler>
         if (callbacksHandle.IsAllocated)
             callbacksHandle.Free();
         
-        foreach (var handle in delegateHandles)
-        {
-            if (handle.IsAllocated)
-                handle.Free();
-        }
-        
         selfHandle.Free();
     }
     
     protected IntPtr CreateCallback<TDelegate>(TDelegate callback)
     {
-        delegateHandles.Add(GCHandle.Alloc(callback));
         return Marshal.GetFunctionPointerForDelegate(callback);
     }