FW move altitude first order hold (FOH) and loiter to position special cases from navigator to position controller

Co-authored-by: RomanBapst <bapstroman@gmail.com>

src/modules/navigator/mission.h

@@ -76,11 +76,6 @@ public:
 	void on_activation() override;
 	void on_active() override;
 
-	enum mission_altitude_mode {
-		MISSION_ALTMODE_ZOH = 0,
-		MISSION_ALTMODE_FOH = 1
-	};
-
 	bool set_current_mission_index(uint16_t index);
 
 	bool land_start();
@@ -155,11 +150,6 @@ private:
 	 */
 	void heading_sp_update();
 
-	/**
-	 * Updates the altitude sp to follow a foh
-	 */
-	void altitude_sp_foh_update();
-
 	/**
 	 * Update the cruising speed setpoint.
 	 */
@@ -243,7 +233,6 @@ private:
 	DEFINE_PARAMETERS(
 		(ParamFloat<px4::params::MIS_DIST_1WP>) _param_mis_dist_1wp,
 		(ParamFloat<px4::params::MIS_DIST_WPS>) _param_mis_dist_wps,
-		(ParamInt<px4::params::MIS_ALTMODE>) _param_mis_altmode,
 		(ParamInt<px4::params::MIS_MNT_YAW_CTL>) _param_mis_mnt_yaw_ctl
 	)
 
@@ -272,11 +261,6 @@ private:
 	bool _mission_waypoints_changed{false};
 	bool _mission_changed{false}; /** < true if the mission changed since the mission mode was active */
 
-	float _min_current_sp_distance_xy{FLT_MAX}; /**< minimum distance which was achieved to the current waypoint  */
-
-	float _distance_current_previous{0.0f}; /**< distance from previous to current sp in pos_sp_triplet,
-					    only use if current and previous are valid */
-
 	enum work_item_type {
 		WORK_ITEM_TYPE_DEFAULT,		/**< default mission item */
 		WORK_ITEM_TYPE_TAKEOFF,		/**< takeoff before moving to waypoint */