You can use this operation to unregister the ArcGIS Web Adaptor from your portal. Once a Web Adaptor has been unregistered, your portal will no longer trust the Web Adaptor and will not accept any credentials from it. This operation is typically used when you want to register a new Web Adaptor or when your old Web Adaptor needs to be updated.
The response format. The default response format is html.
Values: html | json