Added todo for debug removal

BauSystem_Main/src/de/steamwar/bausystem/features/tracer/TraceRecorder.java

@@ -173,6 +173,7 @@ public class TraceRecorder implements Listener {
             }
             catch (NullPointerException e) {
                 Logger logger = Bukkit.getLogger();
+                //TODO remove when no longer neccecary
                 logger.log(Level.WARNING, "Nullpointer thrown by historyMap");
                 logger.log(Level.WARNING, "TNT History: " + history);
                 logger.log(Level.WARNING, "History Map: " + historyMap);