Jurij,

Thank you for the donation, currently there is no option to remove the ads.I appreciate the donation but the ads help me obtain some revenue to be able to provide the plugin for free. I will hate to start charging for it.

If you still want to remove it you can remove the code from the admin/settings.php file or you can use CSS to hide the banner. Add this code to any stylesheet file loading in the admin area .adunitbox{ display:none }