code: func (c *Cloud) DeleteRoute(clusterName string, route *cloudprovider.Route) error {
  	table, err := c.findRouteTable(clusterName)
  	if err != nil {
  		return err
  	}
  
  	request := &ec2.DeleteRouteInput{}
  	request.DestinationCidrBlock = aws.String(route.DestinationCIDR)
  	request.RouteTableId = table.RouteTableId
  
  	_, err = c.ec2.DeleteRoute(request)
  	if err != nil {
  		return fmt.Errorf("error deleting AWS route (%s): %v", route.DestinationCIDR, err)
  	}
  
  	return nil
  }
docs: // DeleteRoute implements Routes.DeleteRoute
  // Delete the specified route