code: public static void remove(JobState jobState) {
      remove(name(jobState));
      for (TaskState taskState : jobState.getTaskStates()) {
        TaskMetrics.remove(taskState);
      }
    }
docs: Remove the {@link JobMetrics} instance for the job with the given {@link JobState} instance.
  
  <p>
  Removing a {@link JobMetrics} instance for a job will also remove the {@link TaskMetrics}s
  of every tasks of the job.
  </p>
  @param jobState the given {@link JobState} instance