QmlProfiler: Remove detailed progress tracking

The progress bar in the state widget was rather meaningless. We rarely
know how many events we expect and it's rather hard to tell how long
each model will take to process them. Instead, we just show a 0-ranged
progress bar to tell the user that "something is happening".

Change-Id: Icb80840d1f0a1538bcf254faa37cbb36e25d342c
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>

src/plugins/qmlprofiler/qmlprofilermodelmanager.h

@@ -90,10 +90,7 @@ public:
 
     bool isEmpty() const;
 
-    double progress() const;
     int registerModelProxy();
-    void setProxyCountWeight(int proxyId, int weight);
-    void modelProxyCountUpdated(int proxyId, qint64 count, qint64 max);
     void announceFeatures(int proxyId, quint64 features);
     quint64 availableFeatures() const;
     quint64 visibleFeatures() const;
@@ -109,7 +106,6 @@ public:
 signals:
     void error(const QString &error);
     void stateChanged();
-    void progressChanged();
     void loadFinished();
     void saveFinished();