Remove list `RubyMotion` (#2188)

readme.md

@@ -214,7 +214,6 @@
 - [Raspberry Pi](https://github.com/thibmaek/awesome-raspberry-pi#readme) - Credit card-sized computer aimed at teaching kids programming, but capable of a lot more.
 - [Qt](https://github.com/JesseTG/awesome-qt#readme) - Cross-platform GUI app framework.
 - [WebExtensions](https://github.com/fregante/Awesome-WebExtensions#readme) - Cross-browser extension system.
-- [RubyMotion](https://github.com/motion-open-source/awesome-rubymotion#readme) - Write cross-platform native apps for iOS, Android, macOS, tvOS, and watchOS in Ruby.
 - [Smart TV](https://github.com/vitalets/awesome-smart-tv#readme) - Create apps for different TV platforms.
 - [GNOME](https://github.com/Kazhnuz/awesome-gnome#readme) - Simple and distraction-free desktop environment for Linux.
 - [KDE](https://github.com/francoism90/awesome-kde#readme) - A free software community dedicated to creating an open and user-friendly computing experience.