Deprecate RoverLandDetector virtual methods that are redundant.

src/modules/land_detector/RoverLandDetector.cpp

@@ -39,8 +39,6 @@
  * @author Julian Oes <julian@oes.ch>
  */
 
-#include <drivers/drv_hrt.h>
-
 #include "RoverLandDetector.h"
 
 namespace land_detector
@@ -59,12 +57,6 @@ bool RoverLandDetector::_get_ground_contact_state()
 	return true;
 }
 
-bool RoverLandDetector::_get_maybe_landed_state()
-{
-	return false;
-}
-
-
 bool RoverLandDetector::_get_landed_state()
 {
 	if (!_actuator_armed.armed) {
@@ -74,11 +66,6 @@ bool RoverLandDetector::_get_landed_state()
 	return false;
 }
 
-bool RoverLandDetector::_get_freefall_state()
-{
-	return false;
-}
-
 float RoverLandDetector::_get_max_altitude()
 {
 	return 0.0f;

src/modules/land_detector/RoverLandDetector.h

@@ -62,10 +62,6 @@ protected:
 
 	virtual bool  _get_ground_contact_state() override;
 
-	virtual bool _get_maybe_landed_state() override;
-
-	virtual bool _get_freefall_state() override;
-
 	virtual float _get_max_altitude() override;
 
 private: