Ghost GitLab Runners

I currently have to GitLab runners that I simply cannot find a way to delete. They are extremely old and not used anymore for a long time, but I can’t deactivate and delete them from my account.

The runners:

  1. #35280 (98c675c6e)
  2. #6869 (c4a87c6c0)

Could someone from support delete them for me?