A cloud-based identity and access management service for securing user authentication and resource access
@Anonymous The inactive agents are removed automatically by the service after 10 days. They will be completely removed on its own (after 10 days) when you have removed the on prem agents.
As a best practice, uninstall both the Connector service and the Updater service from the server. Restart your computer to fully remove the service.
(but since you already removed the server, you will need to wait for 10 days for it to get removed).
-----------------------------------------------------------------------------------------------------------------
Please remember to "Accept Answer" if any answer/reply helped, so that others in the community facing similar issues can easily find the solution.