QmlProfiler: Move unrelated code out of QmlProfilerClientManager

The client manager should not be bothered with details of QML events,
but rather just connect the client, the model manager, and the state
manager.

Change-Id: Iec4499f8441a06d4ef5cbcf7bfe23da6f5e7f239
Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>
Reviewed-by: Alessandro Portale <alessandro.portale@qt.io>
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>

src/plugins/qmlprofiler/qmlprofilertraceclient.h

@@ -65,7 +65,6 @@ signals:
 
     void recordingChanged(bool arg);
     void recordedFeaturesChanged(quint64 features);
-    void newEngine(int engineId);
 
     void cleared();
 
@@ -73,9 +72,6 @@ protected:
     virtual void stateChanged(State status);
     virtual void messageReceived(const QByteArray &);
 
-private:
-    void setRecordingFromServer(bool);
-
 private:
     class QmlProfilerTraceClientPrivate *d;
 };