diff --git a/core/lib/Drupal/Core/DrupalKernelInterface.php b/core/lib/Drupal/Core/DrupalKernelInterface.php
index 6771f09..162627d 100644
--- a/core/lib/Drupal/Core/DrupalKernelInterface.php
+++ b/core/lib/Drupal/Core/DrupalKernelInterface.php
@@ -8,7 +8,6 @@
 namespace Drupal\Core;
 
 use Symfony\Component\DependencyInjection\ContainerAwareInterface;
-use Symfony\Component\DependencyInjection\ContainerInterface;
 use Symfony\Component\HttpKernel\HttpKernelInterface;
 use Symfony\Component\HttpFoundation\Request;
 
diff --git a/core/modules/simpletest/src/Tests/KernelTestBaseTest.php b/core/modules/simpletest/src/Tests/KernelTestBaseTest.php
index 87d2a0d..6d92255 100644
--- a/core/modules/simpletest/src/Tests/KernelTestBaseTest.php
+++ b/core/modules/simpletest/src/Tests/KernelTestBaseTest.php
@@ -8,7 +8,6 @@
 namespace Drupal\simpletest\Tests;
 
 use Drupal\simpletest\KernelTestBase;
-use org\bovigo\vfs\vfsStream;
 
 /**
  * Tests KernelTestBase functionality.
diff --git a/core/tests/Drupal/Tests/KernelTestBase.php b/core/tests/Drupal/Tests/KernelTestBase.php
index 0b17312..ee0fc37 100644
--- a/core/tests/Drupal/Tests/KernelTestBase.php
+++ b/core/tests/Drupal/Tests/KernelTestBase.php
@@ -8,7 +8,6 @@
 namespace Drupal\Tests;
 
 use Drupal\Component\Utility\SafeMarkup;
-use Drupal\Component\Utility\String;
 use Drupal\Core\Config\ConfigImporter;
 use Drupal\Core\Config\StorageComparer;
 use Drupal\Core\Config\StorageInterface;
@@ -21,10 +20,6 @@
 use Drupal\Core\Site\Settings;
 use Drupal\simpletest\AssertContentTrait;
 use Drupal\simpletest\RandomGeneratorTrait;
-use Psr\Log\LoggerInterface;
-use Psr\Log\LoggerTrait;
-use Psr\Log\LogLevel;
-use Symfony\Component\DependencyInjection\Dumper\PhpDumper;
 use Symfony\Component\DependencyInjection\Reference;
 use Symfony\Component\HttpFoundation\Request;
 use org\bovigo\vfs\vfsStream;