QmlProfiler: Remove getState() methods

A numerical representation of "state" is not so useful after all.

Change-Id: I7fc3ae08a2fd44000b5543f4ba25730a8d79358d
Reviewed-by: Kai Koehne <kai.koehne@digia.com>

src/plugins/qmlprofiler/timelinemodelaggregator.cpp

@@ -286,11 +286,5 @@ qint64 TimelineModelAggregator::traceDuration() const
     return d->modelManager->traceTime()->duration();
 }
 
-int TimelineModelAggregator::getState() const
-{
-    return (int)d->modelManager->state();
-}
-
-
 } // namespace Internal
 } // namespace QmlProfiler