code: public OperationFuture<Server> removeSecondaryNetwork(Server server, Network network) {
          ServerMetadata serverMetadata = findByRef(server);
  
          NetworkLink link = client.removeSecondaryNetwork(
              idByRef(server),
              networkIdByRef(network, serverMetadata.getLocationId())
          );
  
          return new OperationFuture<>(
              server,
              link.getOperationId(),
              experimentalQueueClient
          );
      }
docs: Remove secondary network
  
  @param server server reference
  @param network secondary network reference
  @return OperationFuture wrapper for Server