DoAfter Refactor (#13225)

Co-authored-by: DrSmugleaf <drsmugleaf@gmail.com>

Content.Server/Resist/CanEscapeInventoryComponent.cs

@@ -1,5 +1,3 @@
-using System.Threading;
-
 namespace Content.Server.Resist;
 
 [RegisterComponent]
@@ -10,9 +8,4 @@ public sealed class CanEscapeInventoryComponent : Component
     /// </summary>
     [DataField("baseResistTime")]
     public float BaseResistTime = 5f;
-
-    /// <summary>
-    /// Cancellation token used to cancel the DoAfter if the mob is removed before it's complete
-    /// </summary>
-    public CancellationTokenSource? CancelToken;
 }