Zend certified PHP/Magento developer

Remove cronjobs from old module – Magento 2

We had a module that created 3 specific cronjobs. This module was located in the app/code folder and we recently removed the entire module by removing the folder and then run the upgrade command.

But now when we check magerun2 sys:cron:list we still see that these 3 cronjobs exist. They still run, but will not succeed because the module is removed.

How can we also remove those 3 cronjobs?