simplify shape scanner code

Assets/_PROJECT/Scripts/ModeGeneration/ShapeDetection/ShapeScanner.cs

@@ -145,14 +145,8 @@ public class ShapeScanner : MonoBehaviour
             var grab = collidingObject.GetComponent<XRGrabInteractable>();
             if (grab != null && grab.isSelected)
             {
-                var interactors = new List<IXRSelectInteractor>(grab.interactorsSelecting); // the controllers currently holding it
-                foreach (var interactor in interactors)
-                {
-                    // Transfer ownership: tell the manager to stop the selection
-                    //interactionManager.SelectExit(interactor, grab); // Not necessary, creates errors
                 grab.enabled = false;
             }
-            }
             collidingObject.transform.position = Vector3.zero;
             Destroy(collidingObject);
         }