diff --git a/src/Kernel.php b/src/Kernel.php
index aa1ecd558..2143f6353 100644
--- a/src/Kernel.php
+++ b/src/Kernel.php
@@ -4,20 +4,13 @@
 
 namespace Acquia\Cli;
 
-use Symfony\Component\Config\FileLocator;
-use Symfony\Component\Config\Loader\DelegatingLoader;
 use Symfony\Component\Config\Loader\LoaderInterface;
-use Symfony\Component\Config\Loader\LoaderResolver;
 use Symfony\Component\Console\Command\Command;
 use Symfony\Component\DependencyInjection\Argument\ServiceClosureArgument;
 use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;
 use Symfony\Component\DependencyInjection\ContainerBuilder;
-use Symfony\Component\DependencyInjection\ContainerInterface;
-use Symfony\Component\DependencyInjection\Loader\DirectoryLoader;
-use Symfony\Component\DependencyInjection\Loader\YamlFileLoader;
 use Symfony\Component\DependencyInjection\Reference;
 use Symfony\Component\EventDispatcher\EventDispatcher;
-use Symfony\Component\Finder\Finder;
 use Symfony\Component\HttpKernel\Kernel as BaseKernel;
 
 /**
@@ -36,7 +29,6 @@ public function registerBundles(): iterable
     public function registerContainerConfiguration(LoaderInterface $loader): void
     {
         $loader->load($this->getProjectDir() . '/config/' . $this->getEnvironment() . '/services.yml');
-        $this->registerExtensionConfiguration($loader);
     }
 
     /** @infection-ignore-all */
@@ -46,37 +38,6 @@ public function getCacheDir(): string
         return parent::getCacheDir() . $testToken;
     }
 
-    protected function registerExtensionConfiguration(mixed $loader): void
-    {
-        // Search for plugins.
-        $finder = new Finder();
-        $extensions = $finder->files()
-            ->in([
-                __DIR__ . '/../../',
-            ])
-            ->depth(1)
-            ->name('acli.services.yml');
-        foreach ($extensions as $extension) {
-            $loader->load($extension->getRealPath());
-        }
-    }
-
-    /**
-     * Returns a loader for the container.
-     *
-     * @return \Symfony\Component\Config\Loader\DelegatingLoader The loader
-     */
-    protected function getContainerLoader(ContainerInterface $container): DelegatingLoader
-    {
-        $locator = new FileLocator([$this->getProjectDir()]);
-        $resolver = new LoaderResolver([
-            new YamlFileLoader($container, $locator),
-            new DirectoryLoader($container, $locator),
-        ]);
-
-        return new DelegatingLoader($resolver);
-    }
-
     protected function build(ContainerBuilder $containerBuilder): void
     {
         $containerBuilder->addCompilerPass($this->createCollectingCompilerPass());