PositionControl: refactor remove Data define for Vector

This define results in super unreadable code.

src/modules/mc_pos_control/PositionControl.cpp

@@ -50,8 +50,6 @@
 
 using namespace matrix;
 
-using Data = matrix::Vector3f;
-
 PositionControl::PositionControl()
 {
 	_Pz_h   = param_find("MPC_Z_P");
@@ -73,20 +71,20 @@ PositionControl::PositionControl()
 	_setParams();
 };
 
-void PositionControl::updateState(const struct vehicle_local_position_s state, const Data &vel_dot)
+void PositionControl::updateState(const struct vehicle_local_position_s state, const Vector3f &vel_dot)
 {
-	_pos = Data(&state.x);
-	_vel = Data(&state.vx);
+	_pos = Vector3f(&state.x);
+	_vel = Vector3f(&state.vx);
 	_yaw = state.yaw;
 	_vel_dot = vel_dot;
 }
 
 void PositionControl::updateSetpoint(struct vehicle_local_position_setpoint_s setpoint)
 {
-	_pos_sp = Data(&setpoint.x);
-	_vel_sp = Data(&setpoint.vx);
-	_acc_sp = Data(&setpoint.acc_x);
-	_thr_sp = Data(setpoint.thrust);
+	_pos_sp = Vector3f(&setpoint.x);
+	_vel_sp = Vector3f(&setpoint.vx);
+	_acc_sp = Vector3f(&setpoint.acc_x);
+	_thr_sp = Vector3f(setpoint.thrust);
 	_yaw_sp = setpoint.yaw;
 	_yawspeed_sp = setpoint.yawspeed;
 	_interfaceMapping();
@@ -204,12 +202,12 @@ void PositionControl::_velocityController(const float &dt)
 	 *
 	 */
 
-	Data vel_err = _vel_sp - _vel;
+	Vector3f vel_err = _vel_sp - _vel;
 
 	/* TODO: add offboard acceleration mode
 	 * PID-controller */
-	Data offset(0.0f, 0.0f, _ThrHover);
-	Data thr_sp = Pv.emult(vel_err) + Dv.emult(_vel_dot) + _thr_int - offset;
+	Vector3f offset(0.0f, 0.0f, _ThrHover);
+	Vector3f thr_sp = Pv.emult(vel_err) + Dv.emult(_vel_dot) + _thr_int - offset;
 
 	/* Get maximum tilt */
 	float tilt_max = PX4_ISFINITE(_constraints.tilt_max) ? _constraints.tilt_max : M_PI_2_F;