diff --git a/core/lib/Drupal/Core/DrupalKernel.php b/core/lib/Drupal/Core/DrupalKernel.php
index 6bd6cffb3135eac18b87d5ba15ae4ca87525209f..e45f4e98d749ce0f6ca1a9518316df8140f62c56 100644
--- a/core/lib/Drupal/Core/DrupalKernel.php
+++ b/core/lib/Drupal/Core/DrupalKernel.php
@@ -549,20 +549,6 @@ public function getContainer() {
     return $this->container;
   }
 
-  /**
-   * {@inheritdoc}
-   */
-  public function setContainer(ContainerInterface $container = NULL): void {
-    if (isset($this->container)) {
-      throw new \Exception('The container should not override an existing container.');
-    }
-    if ($this->booted) {
-      throw new \Exception('The container cannot be set after a booted kernel.');
-    }
-
-    $this->container = $container;
-  }
-
   /**
    * {@inheritdoc}
    */
diff --git a/core/lib/Drupal/Core/DrupalKernelInterface.php b/core/lib/Drupal/Core/DrupalKernelInterface.php
index f42e8eec6fb3fc88b11d9e7269737d0e56dd15b6..dd7864cd7b45213757cefeec9066c9b8f3d6a4f0 100644
--- a/core/lib/Drupal/Core/DrupalKernelInterface.php
+++ b/core/lib/Drupal/Core/DrupalKernelInterface.php
@@ -2,7 +2,6 @@
 
 namespace Drupal\Core;
 
-use Symfony\Component\DependencyInjection\ContainerAwareInterface;
 use Symfony\Component\HttpKernel\HttpKernelInterface;
 use Symfony\Component\HttpFoundation\Request;
 
@@ -12,7 +11,7 @@
  * This interface extends Symfony's KernelInterface and adds methods for
  * responding to modules being enabled or disabled during its lifetime.
  */
-interface DrupalKernelInterface extends HttpKernelInterface, ContainerAwareInterface {
+interface DrupalKernelInterface extends HttpKernelInterface {
 
   /**
    * Event fired when the service container finished initializing in subrequest.
diff --git a/core/phpstan-baseline.neon b/core/phpstan-baseline.neon
index 42dae7ffe324b69f5ff1573151bb8b423ad4cbe5..aa04f5a6535c356d18631dc8c62adc2bbec5d2c1 100644
--- a/core/phpstan-baseline.neon
+++ b/core/phpstan-baseline.neon
@@ -456,14 +456,6 @@ parameters:
 			count: 1
 			path: lib/Drupal/Core/DrupalKernel.php
 
-		-
-			message: """
-				#^Interface Drupal\\\\Core\\\\DrupalKernelInterface extends deprecated interface Symfony\\\\Component\\\\DependencyInjection\\\\ContainerAwareInterface\\:
-				since Symfony 6\\.4, use dependency injection instead$#
-			"""
-			count: 1
-			path: lib/Drupal/Core/DrupalKernelInterface.php
-
 		-
 			message: "#^Method Drupal\\\\Core\\\\Entity\\\\ContentEntityConfirmFormBase\\:\\:save\\(\\) should return int but return statement is missing\\.$#"
 			count: 1