diff --git a/rules/architecture/tests/Rector/DoctrineRepositoryAsService/DoctrineRepositoryAsServiceTest.php b/rules/architecture/tests/Rector/DoctrineRepositoryAsService/DoctrineRepositoryAsServiceTest.php
index 1bfda921ca0..aa8041abc9e 100644
--- a/rules/architecture/tests/Rector/DoctrineRepositoryAsService/DoctrineRepositoryAsServiceTest.php
+++ b/rules/architecture/tests/Rector/DoctrineRepositoryAsService/DoctrineRepositoryAsServiceTest.php
@@ -36,10 +36,10 @@ final class DoctrineRepositoryAsServiceTest extends AbstractRectorTestCase
     {
         return [
             # order matters, this needs to be first to correctly detect parent repository
-            MoveRepositoryFromParentToConstructorRector::class => null,
-            ServiceLocatorToDIRector::class => null,
-            ReplaceParentRepositoryCallsByRepositoryPropertyRector::class => null,
-            RemoveRepositoryFromEntityAnnotationRector::class => null,
+            MoveRepositoryFromParentToConstructorRector::class => [],
+            ServiceLocatorToDIRector::class => [],
+            ReplaceParentRepositoryCallsByRepositoryPropertyRector::class => [],
+            RemoveRepositoryFromEntityAnnotationRector::class => [],
         ];
     }
 }
diff --git a/src/DependencyInjection/RectorContainerFactory.php b/src/DependencyInjection/RectorContainerFactory.php
index 6084ed5888e..080911a7c65 100644
--- a/src/DependencyInjection/RectorContainerFactory.php
+++ b/src/DependencyInjection/RectorContainerFactory.php
@@ -5,44 +5,11 @@ declare(strict_types=1);
 namespace Rector\Core\DependencyInjection;
 
 use Psr\Container\ContainerInterface;
-use Rector\Core\Exception\ShouldNotHappenException;
 use Rector\Core\HttpKernel\RectorKernel;
-use Rector\Core\Set\Set;
 use Symplify\PackageBuilder\Console\Input\InputDetector;
-use Symplify\SetConfigResolver\SetResolver;
 
 final class RectorContainerFactory
 {
-    /**
-     * @var string[]
-     * local config has priority
-     */
-    private const LOCAL_CONFIGS = ['rector.yml', 'rector.yaml'];
-
-    /**
-     * @var SetResolver
-     */
-    private $setResolver;
-
-    public function __construct()
-    {
-        $this->setResolver = new SetResolver();
-    }
-
-    public function createFromSet(string $set): ContainerInterface
-    {
-        $configs = [];
-        $configs[] = $this->resolveConfigFromSet($set);
-
-        $localConfigs = $this->resolveLocalConfigs();
-        if ($localConfigs !== []) {
-            // local config has priority, so it's first here
-            $configs = array_merge($localConfigs, $configs);
-        }
-
-        return $this->createFromConfigs($configs);
-    }
-
     /**
      * @api
      * @param string[] $configFiles
@@ -62,32 +29,4 @@ final class RectorContainerFactory
 
         return $rectorKernel->getContainer();
     }
-
-    private function resolveConfigFromSet(string $set): string
-    {
-        $config = $this->setResolver->detectFromNameAndDirectory($set, Set::SET_DIRECTORY);
-        if ($config === null) {
-            throw new ShouldNotHappenException(sprintf('Config file for "%s" set was not found', $set));
-        }
-
-        return $config;
-    }
-
-    /**
-     * @return string[]
-     */
-    private function resolveLocalConfigs(): array
-    {
-        $configs = [];
-        foreach (self::LOCAL_CONFIGS as $localConfig) {
-            $configRealPath = getcwd() . DIRECTORY_SEPARATOR . $localConfig;
-            if (! file_exists($configRealPath)) {
-                continue;
-            }
-
-            $configs[] = $configRealPath;
-        }
-
-        return $configs;
-    }
 }
diff --git a/tests/DependencyInjection/RectorContainerFactoryTest.php b/tests/DependencyInjection/RectorContainerFactoryTest.php
deleted file mode 100644
index f5629e62084..00000000000
--- a/tests/DependencyInjection/RectorContainerFactoryTest.php
+++ /dev/null
@@ -1,29 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace Rector\Core\Tests\DependencyInjection;
-
-use PHPUnit\Framework\TestCase;
-use Rector\Core\DependencyInjection\RectorContainerFactory;
-use Symfony\Component\DependencyInjection\ContainerInterface;
-use Symplify\SetConfigResolver\Exception\SetNotFoundException;
-
-final class RectorContainerFactoryTest extends TestCase
-{
-    public function test(): void
-    {
-        $rectorContainerFactory = new RectorContainerFactory();
-
-        $rectorContainer = $rectorContainerFactory->createFromSet('doctrine');
-        $this->assertInstanceOf(ContainerInterface::class, $rectorContainer);
-    }
-
-    public function testMissingSet(): void
-    {
-        $rectorContainerFactory = new RectorContainerFactory();
-
-        $this->expectException(SetNotFoundException::class);
-        $rectorContainerFactory->createFromSet('bla');
-    }
-}