Update DEVELOPMENT.md

Author: LinusDierheimer

DEVELOPMENT.md

@@ -25,7 +25,6 @@ Here i just add things that are easy to forget.
 - [ ] Make CPU usage detection much faster and more accurate
 - [ ] Detect CPU usage in a common detection methode and expose it both to the cpuUsage module and the cpu format string
 - [ ] Per session caching
-- [ ] RPM packaging
 
 ### General
 - More presets