code: @Help(
      help =
          "Delete the PhysicalNetworkFunctionDescriptor of a NetworkServiceDescriptor with specific id"
    )
    public void deletePhysicalNetworkFunctionDescriptor(final String idNsd, final String idPnf)
        throws SDKException {
      String url = idNsd + "/pnfdescriptors" + "/" + idPnf;
      requestDelete(url);
    }
docs: Delete a specific PhysicalNetworkFunctionDescriptor which is contained in a particular
  NetworkServiceDescriptor.
  
  @param idNsd the NetworkServiceDescriptor's ID
  @param idPnf :the PhysicalNetworkFunctionDescriptor's ID
  @throws SDKException if the request fails