diff --git a/core/modules/user/tests/src/Functional/UserAdminTest.php b/core/modules/user/tests/src/Functional/UserAdminTest.php
index 867b6156f9..37838bb88e 100644
--- a/core/modules/user/tests/src/Functional/UserAdminTest.php
+++ b/core/modules/user/tests/src/Functional/UserAdminTest.php
@@ -170,10 +170,8 @@ public function testNotificationEmailAddress() {
     $this->assertRaw('id="edit-mail-notification-address"');
     $this->drupalLogout();
 
-    // Test custom user registration approval email address(es).
-    $config = $this->config('user.settings');
     // Allow users to register with admin approval.
-    $config
+    $this->config('user.settings')
       ->set('verify_mail', TRUE)
       ->set('register', UserInterface::REGISTER_VISITORS_ADMINISTRATIVE_APPROVAL)
       ->save();
@@ -219,10 +217,6 @@ public function testResendWelcomeEmailNotification($register_mode, $mail_id) {
     $admin_user = $this->drupalCreateUser(['administer users']);
     $this->drupalLogin($admin_user);
 
-    $config = $this->config('user.settings')
-      ->set('register', $register_mode)
-      ->save();
-
     // Create an active user.
     $test_user = $this->drupalCreateUser();
     $test_user->save();
@@ -271,10 +265,6 @@ public function testResendAwaitingApprovalEmailNotification($register_mode, $mai
     $admin_user = $this->drupalCreateUser(['administer users']);
     $this->drupalLogin($admin_user);
 
-    $config = $this->config('user.settings')
-      ->set('register', $register_mode)
-      ->save();
-
     // Create a blocked user.
     $blocked_user = $this->drupalCreateUser()->block();
     $blocked_user->save();