Before you uninstall ArcGIS Enterprise on Kubernetes Web Adaptor, you must first unregister it with your organization. To reestablish the connection in the future, you can reinstall ArcGIS Enterprise on Kubernetes Web Adaptor and use the configuration wizard to reconfigure it with your organization.
Once ArcGIS Enterprise on Kubernetes Web Adaptor is unregistered, you can uninstall the Web Adaptor using your operating system's tools to uninstall a program.