added missing language string already present in default theme

cfoe

2012-05-22 0ae667e6cfdd1bcc85bacf85cd93a84f99fa88f8

 interface/web/admin/lib/lang/pl_language_import.lng

@@ -6,4 +6,3 @@
$wb['btn_cancel_txt'] = 'Wróć';
$wb['ignore_version_txt'] = 'Pomiń sprawdzanie wersji ISPConfig';
?>