diff --git a/core/modules/dblog/tests/src/Functional/DbLogTest.php b/core/modules/dblog/tests/src/Functional/DbLogTest.php
index 32480eb0e7..76bdd6151d 100644
--- a/core/modules/dblog/tests/src/Functional/DbLogTest.php
+++ b/core/modules/dblog/tests/src/Functional/DbLogTest.php
@@ -750,22 +750,6 @@ protected function getSeverityConstant($class) {
   }
 
   /**
-   * Extracts the text contained by the XHTML element.
-   *
-   * @param \SimpleXMLElement $element
-   *   Element to extract text from.
-   *
-   * @return string
-   *   Extracted text.
-   */
-  protected function asText(\SimpleXMLElement $element) {
-    if (!is_object($element)) {
-      return $this->fail('The element is not an element.');
-    }
-    return trim(html_entity_decode(strip_tags($element->asXML())));
-  }
-
-  /**
    * Confirms that a log message appears on the database log overview screen.
    *
    * This function should only be used for the admin/reports/dblog page, because