code: @Override
      public DeleteTransitGatewayRouteTableResult deleteTransitGatewayRouteTable(DeleteTransitGatewayRouteTableRequest request) {
          request = beforeClientExecution(request);
          return executeDeleteTransitGatewayRouteTable(request);
      }
docs: <p>
  Deletes the specified transit gateway route table. You must disassociate the route table from any transit gateway
  route tables before you can delete it.
  </p>
  
  @param deleteTransitGatewayRouteTableRequest
  @return Result of the DeleteTransitGatewayRouteTable operation returned by the service.
  @sample AmazonEC2.DeleteTransitGatewayRouteTable
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/ec2-2016-11-15/DeleteTransitGatewayRouteTable"
  target="_top">AWS API Documentation</a>