Remove obsolete plugin storage

Plugin storage was used before the value cache existed. With the
value cache this is no longer used and can be removed.

refs #660

src/plugins/simulator/fscommon/simulatorfscommon.h

@@ -74,7 +74,6 @@ namespace BlackSimPlugin
             CSimulatorFsCommon(const BlackMisc::Simulation::CSimulatorPluginInfo &info,
                                BlackMisc::Simulation::IOwnAircraftProvider    *ownAircraftProvider,
                                BlackMisc::Simulation::IRemoteAircraftProvider *renderedAircraftProvider,
-                               BlackMisc::IPluginStorageProvider              *pluginStorageProvider,
                                BlackMisc::Weather::IWeatherGridProvider       *weatherGridProvider,
                                QObject *parent = nullptr);