diff --git a/core/tests/Drupal/Tests/Core/DependencyInjection/Compiler/MimeTypePassTest.php b/core/tests/Drupal/Tests/Core/DependencyInjection/Compiler/MimeTypePassTest.php
deleted file mode 100644
index 6526135f89e..00000000000
--- a/core/tests/Drupal/Tests/Core/DependencyInjection/Compiler/MimeTypePassTest.php
+++ /dev/null
@@ -1,63 +0,0 @@
-<?php
-
-namespace Drupal\Tests\Core\DependencyInjection\Compiler;
-
-use Drupal\Core\DependencyInjection\Compiler\MimeTypePass;
-use Drupal\Tests\UnitTestCase;
-use Symfony\Component\DependencyInjection\ContainerBuilder;
-use Symfony\Component\HttpFoundation\File\MimeType\MimeTypeGuesserInterface as LegacyMimeTypeGuesserInterface;
-use Symfony\Component\Mime\MimeTypeGuesserInterface;
-use Drupal\Core\File\MimeType\MimeTypeGuesser;
-
-/**
- * @coversDefaultClass \Drupal\Core\DependencyInjection\Compiler\MimeTypePass
- * @group DependencyInjection
- * @group legacy
- * @runInSeparateProcess
- */
-class MimeTypePassTest extends UnitTestCase {
-
-  protected function buildContainer($environment = 'dev') {
-    $container = new ContainerBuilder();
-    $container->setParameter('kernel.environment', $environment);
-    return $container;
-  }
-
-  /**
-   * Tests backwards compatibility shim for MimeTypeGuesser interface changes.
-   *
-   * @expectedDeprecation The "Drupal\Tests\Core\DependencyInjection\Compiler\LegacyMimeTypeGuesser" class implements "Symfony\Component\HttpFoundation\File\MimeType\MimeTypeGuesserInterface" that is deprecated since Symfony 4.3, use {@link MimeTypesInterface} instead.
-   */
-  public function testProcessLegacy() {
-    $container = $this->buildContainer();
-    $container
-      ->register('file.mime_type.guesser', MimeTypeGuesser::class);
-
-    $container
-      ->register('handler1', __NAMESPACE__ . '\NewMimeTypeGuesser')
-      ->addTag('mime_type_guesser');
-    $container
-      ->register('handler2', __NAMESPACE__ . '\LegacyMimeTypeGuesser')
-      ->addTag('mime_type_guesser');
-
-    $handler_pass = new MimeTypePass();
-    $handler_pass->process($container);
-    $method_calls = $container->getDefinition('file.mime_type.guesser')->getMethodCalls();
-    $this->assertCount(2, $method_calls);
-  }
-
-}
-
-class NewMimeTypeGuesser implements MimeTypeGuesserInterface {
-
-  public function guessMimeType(string $string): string {}
-
-  public function isGuesserSupported(): bool {}
-
-}
-
-class LegacyMimeTypeGuesser implements LegacyMimeTypeGuesserInterface {
-
-  public function guess($string) {}
-
-}