Fixed warnings as mentioned in

https://dev.vatsim-germany.org/boards/22/topics/2587?r=2598#message-2598
and found by
+win32-msvc*:QMAKE_CXXFLAGS_WARN_ON *= /Wall /W3 /wd4640 /wd4619 /wd4350 /wd4351

src/plugins/simulator/fsx/simconnect_datadefinition.h

@@ -118,7 +118,7 @@ namespace BlackSimPlugin
             //! Set default values
             void setDefaultValues()
             {
-                std::fill(data, data + 128, 0);
+                std::fill(data, data + 128, static_cast<byte>(0));
                 data[17] = 1; // standby
                 data[19] = 0; // no ident
             }

src/plugins/simulator/fsx/simulator_fsx.cpp

@@ -185,7 +185,6 @@ namespace BlackSimPlugin
                 CLogMessage(this).warning("FSX: Not connected, not added aircraft %1") << callsign.toQString();
                 return false;
             }
-            remoteAircraft().setRendered(callsign, false);
         }
 
         bool CSimulatorFsx::updateOwnSimulatorCockpit(const CAircraft &ownAircraft, const QString &originator)