Fix NullPointerException in delete()

BauSystem_Main/src/de/steamwar/bausystem/tracer/trace/TNTFrame.java

@@ -50,7 +50,6 @@ public class TNTFrame {
     private void delete(TNTPrimed tntPrimed, boolean delete) {
         if (aliveTNT == null) return;
         TNTTrace tntTrace = aliveTNT.get(tntPrimed);
-        tntTrace.addLocation(tntPrimed.getLocation());
         if (delete) {
             aliveTNT.remove(tntPrimed);
         }