code: @Override
      public DeleteActivationResult deleteActivation(DeleteActivationRequest request) {
          request = beforeClientExecution(request);
          return executeDeleteActivation(request);
      }
docs: <p>
  Deletes an activation. You are not required to delete an activation. If you delete an activation, you can no
  longer use it to register additional managed instances. Deleting an activation does not de-register managed
  instances. You must manually de-register managed instances.
  </p>
  
  @param deleteActivationRequest
  @return Result of the DeleteActivation operation returned by the service.
  @throws InvalidActivationIdException
  The activation ID is not valid. Verify the you entered the correct ActivationId or ActivationCode and try
  again.
  @throws InvalidActivationException
  The activation is not valid. The activation might have been deleted, or the ActivationId and the
  ActivationCode do not match.
  @throws InternalServerErrorException
  An error occurred on the server side.
  @throws TooManyUpdatesException
  There are concurrent updates for a resource that supports one update at a time.
  @sample AWSSimpleSystemsManagement.DeleteActivation
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/ssm-2014-11-06/DeleteActivation" target="_top">AWS API
  Documentation</a>