[xSwiftBus] Automatically find and load CSL packages

ref T657

src/plugins/simulator/xplane/simulatorxplane.h

@@ -179,9 +179,6 @@ namespace BlackSimPlugin
             void fastTimerTimeout();
             void slowTimerTimeout();
 
-            void loadCslPackages();
-            QString findCslPackage(const QString &modelFileName);
-
             //! Update remote aircraft
             //! \remark this is where the interpolated data are set
             void updateRemoteAircraft();