Plane: removed init_vehicle from separate vehicles

use common call from AP_BoardConfig

ArduPlane/system.cpp

@@ -137,9 +137,6 @@ void Plane::init_ardupilot()
     camera_mount.init();
 #endif
 
-    // run all the vehicle initialization routines
-    init_vehicle();
-
 #if LANDING_GEAR_ENABLED == ENABLED
     // initialise landing gear position
     g2.landing_gear.init();