Control/PTU2: whitespace cleanup.
Maneuver/VehicleFormation/FormCollAvoid: cleared derived class empty function implementations.
Simulators/Multicopter: cleared derived class empty function implementations.
Simulators/UAVAutopilot: cleared derived class empty function implementations.
Transports/ArdupilotSITL: cleared derived class empty function implementations.
Transports/FlightGear: cleared derived class empty function implementations.
Transports/IridiumSBD: cleared derived class empty function implementations.
Transports/Noptilus: cleared derived class empty function implementations.
Transports/UAN: cleared derived class empty function implementations.
UserInterfaces/RCViaArdupilot: cleared derived class empty function implementations.