code: private void delete(Node node) {
      if (handHot == node) {
        handHot = node.next;
      }
      if (handCold == node) {
        handCold = node.next;
      }
      if (handTest == node) {
        handTest = node.next;
      }
      node.remove();
    }
docs: Delete meta data data, update hands accordingly.