Hi,
We sent tons of warnings in past that you should migrate all bots or tools (should you run any) from bots project on wikimedia labs to tools project.
The servers are now going to be deleted within few days, so this is last notification I am going to send regarding this.
So far I have revoked access from basically everyone except project admins so I believe that it is "safe to delete" the instances as nobody complained that they lost the access.
Let me know if you have any questions :)