Cybercash no more

I was just looking through the CVS tree: http://cvs.php.net/cvs.php/php4/ext/cybercash And I noticed that the cybercash extension apparently simply doesn't exist anymore. It looks like the service itself has disappeared (actually been baught out) hence, no need for an extension. I don't have access to my tree, can someone confirm what I have found and remove the documentation for the extension? I see absolutely no reason why we should keep the documentation at all, as anybody who was using the extension simply can't anymore if the service simply doesn't exist. John