diff --git a/core/modules/system/lib/Drupal/system/Tests/System/SystemConfigFormBase.php b/core/modules/system/lib/Drupal/system/Tests/System/SystemConfigFormBase.php
index 867bb10..c39be30 100644
--- a/core/modules/system/lib/Drupal/system/Tests/System/SystemConfigFormBase.php
+++ b/core/modules/system/lib/Drupal/system/Tests/System/SystemConfigFormBase.php
@@ -45,12 +45,8 @@ abstract class SystemConfigFormBase extends WebTestBase {
   public function setUp() {
     $this->values = array();
     parent::setUp();
-
-    $this->setUpSystemConfigForm();
   }
 
-  abstract function setUpSystemConfigForm();
-
   /**
    * Submit the system_config_form ensure the configuration has expected values.
    */