How to remove orphaned GitHub Integrations?


In our Sentry OnPremise installation we now 3 GitHub Integrations with the same GitHub account and I want to remove all of them.

The reason why we ended up with this three integrations is we changed the server url of our sentry installation between installing and uninstalling the GitHub app without telling GitHub.
When we tried to uninstall the integrations the uninstall on the GitHub Side was successful, but GitHub could not notify our Sentry Server and therefore we now have these orphaned integrations.
We still want to use the integration, just get rid of the broken ones so disabling it as described here is not an option.

Any idea how to solve this Problem?