diff --git a/core/modules/views/src/Tests/Handler/AreaEntityTest.php b/core/modules/views/src/Tests/Handler/AreaEntityTest.php
index 749411b..bc3fe6e 100644
--- a/core/modules/views/src/Tests/Handler/AreaEntityTest.php
+++ b/core/modules/views/src/Tests/Handler/AreaEntityTest.php
@@ -10,7 +10,6 @@
 use Drupal\block\Entity\Block;
 use Drupal\Core\Entity\EntityTypeInterface;
 use Drupal\Core\Form\FormState;
-use Drupal\simpletest\AssertContentTrait;
 use Drupal\views\Entity\View;
 use Drupal\views\Tests\ViewUnitTestBase;
 use Drupal\views\Views;
@@ -23,8 +22,6 @@
  */
 class AreaEntityTest extends ViewUnitTestBase {
 
-  use AssertContentTrait;
-
   /**
    * Modules to enable.
    *