private function deleteConfiguration(ConfigurationInterface $configuration)
    {
        $this
            ->configurationObjectManager
            ->remove($configuration);

        $this
            ->configurationObjectManager
            ->flush($configuration);

        return $this;
    }
private function deleteConfiguration(ConfigurationInterface $configuration)
    {
        $this
            ->configurationObjectManager
            ->remove($configuration);

        $this
            ->configurationObjectManager
            ->flush($configuration);

        return $this;
    }
private function deleteConfiguration ( ConfigurationInterface $ configuration ) { $ this -> configurationObjectManager -> remove ( $ configuration ) ; $ this -> configurationObjectManager -> flush ( $ configuration ) ; return $ this ; }
Deletes a configuration instance.

@param ConfigurationInterface $configuration Configuration instance

@return $this Self object
Deletes a configuration instance .