Disable processing of SSR descriptions.
Created by: mutalyzerbot
Original ticket: https://humgenprojects.lumc.nl/trac/mutalyzer/ticket/120 Original date: 2012/10/22 Original reporter: j DOT f DOT j DOT laros AND lumc DOT nl
At this moment, we allow SSR descriptions but we do not return them, this is confusing.
I suggest we exit and return an error for now.