diff --git a/core/modules/simpletest/lib/Drupal/simpletest/WebTestBase.php b/core/modules/simpletest/lib/Drupal/simpletest/WebTestBase.php
index 385d6f4..2844fa7 100644
--- a/core/modules/simpletest/lib/Drupal/simpletest/WebTestBase.php
+++ b/core/modules/simpletest/lib/Drupal/simpletest/WebTestBase.php
@@ -593,7 +593,6 @@ abstract class WebTestBase extends TestBase {
    */
   protected function setUp() {
     global $user, $conf;
-    $language_interface = language(LANGUAGE_TYPE_INTERFACE);
 
     // Create the database prefix for this test.
     $this->prepareDatabasePrefix();
@@ -704,7 +703,6 @@ abstract class WebTestBase extends TestBase {
 
     // Set up English language.
     unset($conf['language_default']);
-    $language_interface = language_default();
 
     // Use the test mail class instead of the default mail handler class.
     variable_set('mail_system', array('default-system' => 'Drupal\Core\Mail\VariableLog'));