public void deschedule(Node<K, V> node) {
    unlink(node);
    node.setNextInVariableOrder(null);
    node.setPreviousInVariableOrder(null);
  }
@Test(dataProvider = "clock")
  public void deschedule(long clock) {
    var timer = new Timer(clock + 100);
    timerWheel.nanos = clock;
    timerWheel.schedule(timer);
    timerWheel.deschedule(timer);
    assertThat(timer.getNextInVariableOrder()).isNull();
    assertThat(timer.getPreviousInVariableOrder()).isNull();
  }