Removed crtmpserver (#2792)

crtmpserver has a broken link and is no longer available on Debian. Only remains of this project are old forks, and website is under a new owner.
Fixes https://github.com/awesome-selfhosted/awesome-selfhosted/issues/2772

README.md

@@ -1166,7 +1166,6 @@ _See also: [List of streaming media systems - Wikipedia](https://en.wikipedia.or
 **[`^        back to top        ^`](#)**
 
 - [Bluecherry](https://www.bluecherrydvr.com/) - Closed-circuit television (CCTV) software application which supports IP and Analog cameras. ([Source Code](https://github.com/bluecherrydvr/bluecherry-apps)) `GPL-2.0` `PHP`
-- [crtmpserver](https://packages.debian.org/stable/crtmpserver) - High performance RTMP/RTSP streaming server. `GPL-3.0` `C++`
 - [CyTube](https://github.com/calzoneman/sync) - CyTube is a web application providing media synchronization, chat, and more for an arbitrary number of channels. ([Demo](https://cytu.be)) `MIT` `Nodejs`
 - [Hellowlol HTPC Manager fork](https://github.com/Hellowlol/HTPC-Manager) - Fully responsive interface to manage all your favorite media on your HTPC. `MIT` `Python`
 - [Invidious](https://github.com/iv-org/invidious) - `⚠` Invidious is an alternative front-end to YouTube. ([Demo](https://docs.invidious.io/Invidious-Instances.md)) `AGPL-3.0` `Crystal`