remove drifty from apps packaged with jp list

Author: fvarrui

README.md

@@ -15,7 +15,6 @@ It was born while teaching to my students how to build and distribute their Java
 
 - [AstroImageJ](http://astroimagej.com/)
 - [Astro Pixel Processor](https://www.astropixelprocessor.com/)
-- [Drifty](https://github.com/SaptarshiSarkar12/Drifty)
 - [GistFX](https://github.com/RedmondSims/GistFX)
 - [Spektar Design Lab](https://spektar.io/)