code: @Override
      public DeleteReusableDelegationSetResult deleteReusableDelegationSet(DeleteReusableDelegationSetRequest request) {
          request = beforeClientExecution(request);
          return executeDeleteReusableDelegationSet(request);
      }
docs: <p>
  Deletes a reusable delegation set.
  </p>
  <important>
  <p>
  You can delete a reusable delegation set only if it isn't associated with any hosted zones.
  </p>
  </important>
  <p>
  To verify that the reusable delegation set is not associated with any hosted zones, submit a <a
  href="https://docs.aws.amazon.com/Route53/latest/APIReference/API_GetReusableDelegationSet.html"
  >GetReusableDelegationSet</a> request and specify the ID of the reusable delegation set that you want to delete.
  </p>
  
  @param deleteReusableDelegationSetRequest
  A request to delete a reusable delegation set.
  @return Result of the DeleteReusableDelegationSet operation returned by the service.
  @throws NoSuchDelegationSetException
  A reusable delegation set with the specified ID does not exist.
  @throws DelegationSetInUseException
  The specified delegation contains associated hosted zones which must be deleted before the reusable
  delegation set can be deleted.
  @throws DelegationSetNotReusableException
  A reusable delegation set with the specified ID does not exist.
  @throws InvalidInputException
  The input is not valid.
  @sample AmazonRoute53.DeleteReusableDelegationSet
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/route53-2013-04-01/DeleteReusableDelegationSet"
  target="_top">AWS API Documentation</a>