[FrameworkBundle] CS fix

Author: nicolas-grekas

Kernel/MicroKernelTrait.php

@@ -13,7 +13,6 @@
 
 use Symfony\Component\Config\Loader\LoaderInterface;
 use Symfony\Component\DependencyInjection\ContainerBuilder;
-use Symfony\Component\DependencyInjection\Definition;
 use Symfony\Component\DependencyInjection\Loader\Configurator\AbstractConfigurator;
 use Symfony\Component\DependencyInjection\Loader\Configurator\ContainerConfigurator;
 use Symfony\Component\DependencyInjection\Loader\PhpFileLoader as ContainerPhpFileLoader;