code: @Override
      public DeleteEnvironmentConfigurationResult deleteEnvironmentConfiguration(DeleteEnvironmentConfigurationRequest request) {
          request = beforeClientExecution(request);
          return executeDeleteEnvironmentConfiguration(request);
      }
docs: <p>
  Deletes the draft configuration associated with the running environment.
  </p>
  <p>
  Updating a running environment with any configuration changes creates a draft configuration set. You can get the
  draft configuration using <a>DescribeConfigurationSettings</a> while the update is in progress or if the update
  fails. The <code>DeploymentStatus</code> for the draft configuration indicates whether the deployment is in
  process or has failed. The draft configuration remains in existence until it is deleted with this action.
  </p>
  
  @param deleteEnvironmentConfigurationRequest
  Request to delete a draft environment configuration.
  @return Result of the DeleteEnvironmentConfiguration operation returned by the service.
  @sample AWSElasticBeanstalk.DeleteEnvironmentConfiguration
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/elasticbeanstalk-2010-12-01/DeleteEnvironmentConfiguration"
  target="_top">AWS API Documentation</a>