code: @Override
      public DeleteTopicResult deleteTopic(DeleteTopicRequest request) {
          request = beforeClientExecution(request);
          return executeDeleteTopic(request);
      }
docs: <p>
  Deletes a topic and all its subscriptions. Deleting a topic might prevent some messages previously sent to the
  topic from being delivered to subscribers. This action is idempotent, so deleting a topic that does not exist
  does not result in an error.
  </p>
  
  @param deleteTopicRequest
  @return Result of the DeleteTopic operation returned by the service.
  @throws InvalidParameterException
  Indicates that a request parameter does not comply with the associated constraints.
  @throws InternalErrorException
  Indicates an internal service error.
  @throws AuthorizationErrorException
  Indicates that the user has been denied access to the requested resource.
  @throws NotFoundException
  Indicates that the requested resource does not exist.
  @throws StaleTagException
  A tag has been added to a resource with the same ARN as a deleted resource. Wait a short while and then
  retry the operation.
  @throws TagPolicyException
  The request doesn't comply with the IAM tag policy. Correct your request and then retry it.
  @throws ConcurrentAccessException
  Can't perform multiple operations on a tag simultaneously. Perform the operations sequentially.
  @sample AmazonSNS.DeleteTopic
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/sns-2010-03-31/DeleteTopic" target="_top">AWS API
  Documentation</a>