diff --git a/core/tests/Drupal/KernelTests/KernelTestBase.php b/core/tests/Drupal/KernelTests/KernelTestBase.php
index fd26d08a14..e26f5e0e15 100644
--- a/core/tests/Drupal/KernelTests/KernelTestBase.php
+++ b/core/tests/Drupal/KernelTests/KernelTestBase.php
@@ -1096,16 +1096,4 @@ public function __sleep() {
     return [];
   }
 
-  /**
-   * {@inheritdoc}
-   */
-  public static function assertEquals($expected, $actual, $message = '', $delta = 0.0, $maxDepth = 10, $canonicalize = FALSE, $ignoreCase = FALSE) {
-    // Cast objects implementing MarkupInterface to string instead of
-    // relying on PHP casting them to string depending on what they are being
-    // comparing with.
-    $expected = static::castSafeStrings($expected);
-    $actual = static::castSafeStrings($actual);
-    parent::assertEquals($expected, $actual, $message, $delta, $maxDepth, $canonicalize, $ignoreCase);
-  }
-
 }
diff --git a/core/tests/Drupal/Tests/BrowserTestBase.php b/core/tests/Drupal/Tests/BrowserTestBase.php
index 2b1ee867b1..20f31e3d83 100644
--- a/core/tests/Drupal/Tests/BrowserTestBase.php
+++ b/core/tests/Drupal/Tests/BrowserTestBase.php
@@ -678,18 +678,6 @@ protected function getDrupalSettings() {
     return [];
   }
 
-  /**
-   * {@inheritdoc}
-   */
-  public static function assertEquals($expected, $actual, $message = '', $delta = 0.0, $maxDepth = 10, $canonicalize = FALSE, $ignoreCase = FALSE) {
-    // Cast objects implementing MarkupInterface to string instead of
-    // relying on PHP casting them to string depending on what they are being
-    // comparing with.
-    $expected = static::castSafeStrings($expected);
-    $actual = static::castSafeStrings($actual);
-    parent::assertEquals($expected, $actual, $message, $delta, $maxDepth, $canonicalize, $ignoreCase);
-  }
-
   /**
    * Retrieves the current calling line in the class under test.
    *