Remove SEOPress credits in footer admin pages

Since SEOPress 1.0

if (isset($_GET['page']) && ($_GET['page'] == 'seopress-option' || $_GET['page'] == 'seopress-network-option' || $_GET['page'] == 'seopress-titles' || $_GET['page'] == 'seopress-xml-sitemap' || $_GET['page'] == 'seopress-social' || $_GET['page'] == 'seopress-google-analytics' || $_GET['page'] == 'seopress-advanced' || $_GET['page'] == 'seopress-pro-page') ) {
     add_filter('admin_footer_text', '__return_empty_string');
}

Last modified: August 14, 2018