diff --git a/resources/lang/zh_TW/form.php b/resources/lang/zh_TW/form.php
index b50b217c62..3b634fc69e 100644
--- a/resources/lang/zh_TW/form.php
+++ b/resources/lang/zh_TW/form.php
@@ -162,11 +162,6 @@ return [
     'single_user_mode'        => 'Single user mode',
     'must_confirm_account'    => 'New users must activate account',
     'is_demo_site'            => 'Is demo site',
-    'mail_for_lockout'        => 'Locked out',
-    'mail_for_blocked_domain' => 'Blocked domain',
-    'mail_for_blocked_email'  => 'Blocked email address',
-    'mail_for_bad_login'      => 'Login failure',
-    'mail_for_blocked_login'  => 'Blocked user',
 
 
     // import