EKF: remove virtual getters from estimator_interface

EKF/mag_control.cpp

@@ -138,11 +138,6 @@ void Ekf::checkHaglYawResetReq()
 	}
 }
 
-float Ekf::getTerrainVPos() const
-{
-	return isTerrainEstimateValid() ? _terrain_vpos : _last_on_ground_posD;
-}
-
 void Ekf::runOnGroundYawReset()
 {
 	if (_mag_yaw_reset_req && isYawResetAuthorized()) {
@@ -154,11 +149,6 @@ void Ekf::runOnGroundYawReset()
 	}
 }
 
-bool Ekf::isYawResetAuthorized() const
-{
-	return !_is_yaw_fusion_inhibited;
-}
-
 bool Ekf::canResetMagHeading() const
 {
 	return !isStrongMagneticDisturbance() && (_params.mag_fusion_type != MAG_FUSE_TYPE_NONE);
@@ -177,11 +167,6 @@ void Ekf::runInAirYawReset()
 	}
 }
 
-bool Ekf::canRealignYawUsingGps() const
-{
-	return _control_status.flags.fixed_wing;
-}
-
 void Ekf::runVelPosReset()
 {
 	if (_velpos_reset_request) {
@@ -237,16 +222,6 @@ void Ekf::checkMagBiasObservability()
 	_time_yaw_started = _imu_sample_delayed.time_us;
 }
 
-bool Ekf::isYawAngleObservable() const
-{
-	return _yaw_angle_observable;
-}
-
-bool Ekf::isMagBiasObservable() const
-{
-	return _mag_bias_observable;
-}
-
 bool Ekf::canUse3DMagFusion() const
 {
 	// Use of 3D fusion requires an in-air heading alignment but it should not
@@ -308,11 +283,6 @@ void Ekf::checkMagFieldStrength()
 	}
 }
 
-bool Ekf::isStrongMagneticDisturbance() const
-{
-	return _control_status.flags.mag_field_disturbed;
-}
-
 bool Ekf::isMeasuredMatchingGpsMagStrength() const
 {
 	constexpr float wmm_gate_size = 0.2f; // +/- Gauss