Navigator remove unnecessary calls to updateParams

- the SuperBlock already does this

src/modules/navigator/land.cpp

@@ -38,18 +38,6 @@
  * @author Andreas Antener <andreas@uaventure.com>
  */
 
-#include <string.h>
-#include <stdlib.h>
-#include <stdbool.h>
-#include <math.h>
-#include <fcntl.h>
-
-#include <systemlib/err.h>
-#include <systemlib/mavlink_log.h>
-
-#include <uORB/uORB.h>
-#include <uORB/topics/position_setpoint_triplet.h>
-
 #include "land.h"
 #include "navigator.h"
 
@@ -58,15 +46,6 @@ Land::Land(Navigator *navigator, const char *name) :
 {
 }
 
-Land::~Land()
-{
-}
-
-void
-Land::on_inactive()
-{
-}
-
 void
 Land::on_activation()
 {