diff --git a/core/lib/Drupal/Core/Database/ReplicaKillSwitch.php b/core/lib/Drupal/Core/Database/ReplicaKillSwitch.php
index 393d30c777..05b761b649 100644
--- a/core/lib/Drupal/Core/Database/ReplicaKillSwitch.php
+++ b/core/lib/Drupal/Core/Database/ReplicaKillSwitch.php
@@ -2,10 +2,8 @@
 
 namespace Drupal\Core\Database;
 
-use Drupal\Component\Datetime\TimeInterface;
 use Drupal\Core\Site\Settings;
 use Symfony\Component\EventDispatcher\EventSubscriberInterface;
-use Symfony\Component\HttpFoundation\Session\SessionInterface;
 use Symfony\Component\HttpKernel\Event\RequestEvent;
 use Symfony\Component\HttpKernel\KernelEvents;
 
diff --git a/core/lib/Drupal/Core/EventSubscriber/ExcludedModulesEventSubscriber.php b/core/lib/Drupal/Core/EventSubscriber/ExcludedModulesEventSubscriber.php
index 5b2cdda038..7368e6c491 100644
--- a/core/lib/Drupal/Core/EventSubscriber/ExcludedModulesEventSubscriber.php
+++ b/core/lib/Drupal/Core/EventSubscriber/ExcludedModulesEventSubscriber.php
@@ -2,7 +2,6 @@
 
 namespace Drupal\Core\EventSubscriber;
 
-use Drupal\Core\Config\ConfigManagerInterface;
 use Drupal\Core\Config\StorageInterface;
 use Drupal\Core\Config\StorageTransformEvent;
 use Drupal\Core\Site\Settings;
diff --git a/core/modules/language/src/LanguageNegotiator.php b/core/modules/language/src/LanguageNegotiator.php
index adb3f512f5..df0b702c8e 100644
--- a/core/modules/language/src/LanguageNegotiator.php
+++ b/core/modules/language/src/LanguageNegotiator.php
@@ -7,7 +7,6 @@
 use Drupal\Core\Session\AccountInterface;
 use Drupal\Core\Site\Settings;
 use Drupal\language\Plugin\LanguageNegotiation\LanguageNegotiationUI;
-use Symfony\Component\HttpFoundation\RequestStack;
 
 /**
  * Class responsible for performing language negotiation.