doc: Remove obsolete build page, need to re-add for new Jenkins if we want it - https://trello.com/c/PMzvzrjl/92-readd-build-badges-to-readmes

Author: Cervator

README.md

@@ -6,8 +6,6 @@ A library that provides splash screen implementations.
 Usage
 -----------
 
-[![Build Status](http://jenkins.terasology.org/job/SplashScreen/badge/icon)](http://jenkins.terasology.org/job/SplashScreen/)
-
 You can integrate this library like this using Gradle: 
 
 ```