Smart Idea to delete form submits with native functions?

A client is using a form bot to continuously monitor the functionality of the mautic instance.
That creates a lot of form submits, that are of no further use.

Do you have an idea, how to get rid of them at the same time?

Not working:

  • there is no campaign action, that deleted submits,
  • there is no API call that can delete submits,

So far I only see a mysql action via script (tricky in a chrooted environment) or a db procedure (bad for updates of mautic).

Did I miss any other easy option (except manual cleanup)?