code: @Override
      public DeleteNetworkInterfaceResult deleteNetworkInterface(DeleteNetworkInterfaceRequest request) {
          request = beforeClientExecution(request);
          return executeDeleteNetworkInterface(request);
      }
docs: <p>
  Deletes the specified network interface. You must detach the network interface before you can delete it.
  </p>
  
  @param deleteNetworkInterfaceRequest
  Contains the parameters for DeleteNetworkInterface.
  @return Result of the DeleteNetworkInterface operation returned by the service.
  @sample AmazonEC2.DeleteNetworkInterface
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/ec2-2016-11-15/DeleteNetworkInterface" target="_top">AWS API
  Documentation</a>