mc_pos_control_multiplatform: comment mavlink_log

The mavlink log didn't seem to be used anyway. This should fix jenkins.

src/modules/mc_pos_control_multiplatform/mc_pos_control.cpp

@@ -53,7 +53,7 @@ MulticopterPositionControlMultiplatform::MulticopterPositionControlMultiplatform
 
 	_task_should_exit(false),
 	_control_task(-1),
-	_mavlink_log_pub(nullptr),
+	//_mavlink_log_pub(nullptr),
 
 	/* publications */
 	_att_sp_pub(nullptr),

src/modules/mc_pos_control_multiplatform/mc_pos_control.h

@@ -84,7 +84,7 @@ protected:
 
 	bool		_task_should_exit;		/**< if true, task should exit */
 	int		_control_task;			/**< task handle for task */
-	orb_advert_t	_mavlink_log_pub;		/**< mavlink log advert */
+	//orb_advert_t	_mavlink_log_pub;		/**< mavlink log advert */
 
 	Publisher<px4_vehicle_attitude_setpoint>	*_att_sp_pub;			/**< attitude setpoint publication */
 	Publisher<px4_vehicle_local_position_setpoint>	*_local_pos_sp_pub;		/**< vehicle local position setpoint publication */