remove clumsy bird (unmaintained since 2017, repo archived)

README.md

@@ -818,7 +818,6 @@ _Games, game servers and control panels._
 - [A Dark Room](https://github.com/doublespeakgames/adarkroom) - Minimalist text adventure game for your browser. ([Demo](http://adarkroom.doublespeakgames.com/)) `MPL-2.0` `HTML5`
 - [Agar.IO Clone](https://github.com/huytd/agar.io-clone) - Agar.io clone written with Socket.IO and HTML5 canvas. `MIT` `Nodejs`
 - [battlecraft](https://github.com/jbreindel/battlecraft) - Fully distributed multiplayer browser game. `Apache-2.0` `Erlang`
-- [Clumsy Bird](https://github.com/ellisonleao/clumsy-bird) - MelonJS port of the famous Flappy Bird Game. ([Demo](http://ellisonleao.github.io/clumsy-bird/)) `MIT` `Nodejs`
 - [elevatorsaga](http://play.elevatorsaga.com/) - The elevator programming game. ([Source Code](https://github.com/magwo/elevatorsaga)) `MIT` `Javascript`
 - [Hextris](https://github.com/Hextris/hextris) - Fast paced HTML5 puzzle game inspired by Tetris. ([Demo](https://hextris.github.io/hextris)) `GPL-3.0` `HTML5`
 - [Legend of the Green Dragon](https://github.com/lotgd/core) - Legend of the Green Dragon is a text-based RPG originally developed by Eric Stevens and JT Traub as a remake of and homage to the classic BBS Door game, Legend of the Red Dragon, by Seth Able Robinson. ([Demo](http://lotgd.net/)) `AGPL-3.0` `PHP`