vtol_att_control: removed unnecessary pointers to derived classes

- we interface over the base class pointer so we don't need any pointers
to the derived classes of VtolType

Signed-off-by: Roman <bapstroman@gmail.com>

src/modules/vtol_att_control/vtol_att_control_main.cpp

@@ -137,16 +137,13 @@ VtolAttitudeControl::VtolAttitudeControl() :
 	parameters_update();
 
 	if (_params.vtol_type == vtol_type::TAILSITTER) {
-		_tailsitter = new Tailsitter(this);
-		_vtol_type = _tailsitter;
+		_vtol_type = new Tailsitter(this);
 
 	} else if (_params.vtol_type == vtol_type::TILTROTOR) {
-		_tiltrotor = new Tiltrotor(this);
-		_vtol_type = _tiltrotor;
+		_vtol_type = new Tiltrotor(this);
 
 	} else if (_params.vtol_type == vtol_type::STANDARD) {
-		_standard = new Standard(this);
-		_vtol_type = _standard;
+		_vtol_type = new Standard(this);
 
 	} else {
 		_task_should_exit = true;

src/modules/vtol_att_control/vtol_att_control_main.h

@@ -219,9 +219,6 @@ private:
 	bool _abort_front_transition;
 
 	VtolType *_vtol_type = nullptr;	// base class for different vtol types
-	Tiltrotor *_tiltrotor = nullptr;	// tailsitter vtol type
-	Tailsitter *_tailsitter = nullptr;	// tiltrotor vtol type
-	Standard *_standard = nullptr;	// standard vtol type
 
 //*****************Member functions***********************************************************************