prow/cron/cron.go
func (c *Cron) removeJob(name string) error {
	job, ok := c.jobs[name]
	if !ok {
		return fmt.Errorf("job %s has not been added to cronAgent yet", name)
	}
	c.cronAgent.Remove(job.entryID)
	delete(c.jobs, name)
	c.logger.Infof("Removed previous cron job %s.", name)
	return nil
}
func (c *Cron) removeJob(name string) error {
	job, ok := c.jobs[name]
	if !ok {
		return fmt.Errorf("job %s has not been added to cronAgent yet", name)
	}
	c.cronAgent.Remove(job.entryID)
	delete(c.jobs, name)
	c.logger.Infof("Removed previous cron job %s.", name)
	return nil
}
// removeJob removes the job from cronAgent