wallabag / wallabag

src/Wallabag/AnnotationBundle/DependencyInjection/Configuration.php

<?php

namespace Wallabag\AnnotationBundle\DependencyInjection;

use Symfony\Component\Config\Definition\Builder\TreeBuilder;
use Symfony\Component\Config\Definition\ConfigurationInterface;

class Configuration implements ConfigurationInterface
{
    /**
     * {@inheritdoc}
     */
    public function getConfigTreeBuilder()
    {
        $treeBuilder = new TreeBuilder();
        $rootNode = $treeBuilder->root('wallabag_annotation');

The assignment to $rootNode is dead and can be removed.

        return $treeBuilder;
    }
}