Welcome to Communities,
As per the information you would like to deregister the a collector from your environment.
Please share the Collector ID which needs to be deregistered, So that we could initiate the de-registration process from the server.
Thank you for sharing all the required details,
We have initiated the request to remove the collector. It should be removed in the next couple of days.
Welcome to communities,
We have provided the option to de-register collector from Cloud Services.
Visit Cloud Services web portal:
Under My Services select Skyline Collector >> Select "Step 5 Manage existing Collectors".
Under Actions, you would have the option to deregister the collector.