ParameterManager: remove duplicated call to _initialRequestTimeoutTimer.stop();
ParameterManager: remove duplicated call to _initialRequestTimeoutTimer.stop();

ethz-asl/qgc_asl,Hunter522/qgroundcontrol,ethz-asl/qgc_asl,ethz-asl/qgc_asl,Hunter522/qgroundcontrol,Hunter522/qgroundcontrol,Hunter522/qgroundcontrol,Hunter522/qgroundcontrol,ethz-asl/qgc_asl,Hunter522/qgroundcontrol,ethz-asl/qgc_asl