remove ulterius server (unmaintained since 2017, repo archived)

README.md

@@ -1056,7 +1056,6 @@ See also <https://en.wikipedia.org/wiki/List_of_streaming_media_systems>, <https
 - [SANE Network Scanning](http://sane-project.org/) - Allow remote clients to access image acquisition devices (scanners) available on the local host. ([Source Code](http://www.sane-project.org/cvs.html)) `GPL-2.0` `C`
 - [TeslaMate](https://github.com/adriankumpf/teslamate) - A powerful data logger for Tesla vehicles. `MIT` `Elixir`
 - [Trello Burndown](https://github.com/swordbeta/trello-burndown) `⚠` - Easy to use SCRUM burndown chart for Trello boards. `MIT` `Go/Docker`
-- [Ulterius](https://ulterius.io) - Ulterius is an open-source remote desktop software with lots of awesome functions. ([Demo](https://rainway.io/register/), [Source Code](https://github.com/Ulterius/server)) `MPL-2.0` `C#`
 - [ViMbAdmin](http://www.vimbadmin.net/) - Provides a web based virtual mailbox administration system to allow mail administrators to easily manage domains, mailboxes and aliases. ([Demo](http://www.vimbadmin.net/demo/auth/login), [Source Code](https://github.com/opensolutions/ViMbAdmin)) `GPL-3.0` `PHP`
 - [Web fonts repository](https://github.com/Finesse/web-fonts-repository) - Simple webfont hosting. Google Fonts alternative for your own fonts. `MIT` `PHP`
 - [webtrees](https://www.webtrees.net) - Webtrees is the web's leading on-line collaborative genealogy application. ([Demo](https://dev.webtrees.net/demo-stable/index.php?ctype=gedcom&ged=demo), [Source Code](https://github.com/fisharebest/webtrees)) `GPL-3.0` `PHP`