Remove duplicate translation strings

interface/web/login/lib/lang/ar.lng

@@ -39,12 +39,5 @@ $wb['otp_code_email_sent_txt'] = 'An email was sent to';
 $wb['otp_code_email_subject_txt'] = 'ISPConfig Login authentication';
 $wb['otp_code_email_template_txt'] = 'Your One time login code is %s' . PHP_EOL . 'This code is valid for 10 minutes.' . PHP_EOL;
 $wb['otp_code_resend_txt'] = 'Request new code';
-$wb['otp_code_txt'] = 'Two Factor Authentication';
-$wb['otp_code_desc_txt'] = 'Enter the code you got from your authenticator app or via email.';
-$wb['otp_code_placeholder_txt'] = 'OTP code';
-$wb['otp_code_email_sent_txt'] = 'An email was sent to';
-$wb['otp_code_email_subject_txt'] = 'ISPConfig Login authentication';
-$wb['otp_code_email_template_txt'] = 'Your One time login code is %s' . PHP_EOL . 'This code is valid for 10 minutes.' . PHP_EOL;
-$wb['otp_code_resend_txt'] = 'Request new code';
 $wb['otp_code_email_sent_failed_txt'] = 'Failed sending an email to %s';
 ?>