QmlProfiler: remove now superfluous processingDone method

This detour existed to ensure that the V8 model and the events model are
done processing before we call complete.

Change-Id: I89b3ec7935e63e8cbcdeaff74d407064456c07be
Reviewed-by: Ulf Hermann <ulf.hermann@theqtcompany.com>

src/plugins/qmlprofiler/qmlprofilermodelmanager.h

@@ -150,7 +150,6 @@ public slots:
                      qint64 ndata1, qint64 ndata2, qint64 ndata3, qint64 ndata4, qint64 ndata5);
 
     void complete();
-    void modelProcessingDone();
 
     void save(const QString &filename);
     void load(const QString &filename);