Copter: GCS_MAVLink uses compass singleton, stop implementing get_compass

ArduCopter/GCS_Mavlink.cpp

@@ -1555,11 +1555,6 @@ AP_Mission *GCS_MAVLINK_Copter::get_mission()
 #endif
 }
 
-Compass *GCS_MAVLINK_Copter::get_compass() const
-{
-    return &copter.compass;
-}
-
 AP_Camera *GCS_MAVLINK_Copter::get_camera() const
 {
 #if CAMERA == ENABLED

ArduCopter/GCS_Mavlink.h

@@ -18,7 +18,6 @@ protected:
 
     AP_Mission *get_mission() override;
     AP_Rally *get_rally() const override;
-    Compass *get_compass() const override;
     AP_Camera *get_camera() const override;
     MAV_RESULT handle_flight_termination(const mavlink_command_long_t &packet) override;
     AP_AdvancedFailsafe *get_advanced_failsafe() const override;