Removing Services from the Services Registry 
In the Services Registry user interface, you cannot remove service definitions and service endpoints.
The SAP NetWeaver Administrator and AS ABAP SOA Manager provide publication rules to publish services to and remove services from the Services Registry.
Services and their endpoints that are added to active publication rules are published to the Services Registry. Any changes to these services are published, too. If you, for example delete a service endpoint for a service, the endpoint is removed from the Services Registry.
Services and their endpoints that are removed from publication rules are also removed from the Services Registry.
More information: Publishing Services, Publishing to the Services Registry
To remove third-party services and services published from the ES Repository, use WS Navigator.
Determine the WSDL Url of your Services Registry.
Open SAP NetWeaver Administrator and choose .
Search for ServicesRegistrySi and copy the Services Registry WSDL.
Open WS Navigator.
In the WSDL Url field, enter the Services Registry WSDL and choose Next.
All Services Registry API operations are displayed.
Select operation hideServiceDefinitions and choose Next.
Enter either the UDDI key or the logical key of the service definition you want to delete and choose Execute.
Both keys are displayed on the General tab in the Services Registry.