diff --git a/core/modules/filter/tests/src/Kernel/TextFormatElementFormTest.php b/core/modules/filter/tests/src/Kernel/TextFormatElementFormTest.php
index 4c76151e62..061b5896d6 100644
--- a/core/modules/filter/tests/src/Kernel/TextFormatElementFormTest.php
+++ b/core/modules/filter/tests/src/Kernel/TextFormatElementFormTest.php
@@ -132,13 +132,4 @@ public function testTextFormatElement() {
     $this->assertNoPattern('|<h4[^>]*></h4>|', 'No empty H4 element found.');
   }
 
-  /**
-   * {@inheritdoc}
-   */
-  protected function getUrl() {
-    // \Drupal\simpletest\AssertContentTrait needs this for ::assertFieldByName
-    // to work.
-    return 'Internal rendering';
-  }
-
 }
diff --git a/core/tests/Drupal/KernelTests/AssertContentTrait.php b/core/tests/Drupal/KernelTests/AssertContentTrait.php
index 1627047783..fec10836ff 100644
--- a/core/tests/Drupal/KernelTests/AssertContentTrait.php
+++ b/core/tests/Drupal/KernelTests/AssertContentTrait.php
@@ -136,16 +136,6 @@ protected function parse() {
     return $this->elements;
   }
 
-  /**
-   * Get the current URL from the cURL handler.
-   *
-   * @return string
-   *   The current URL.
-   */
-  protected function getUrl() {
-    return $this->url ?? 'no-url';
-  }
-
   /**
    * Builds an XPath query.
    *