Rover: removed init_vehicle from separate vehicles

use common call from AP_BoardConfig

APMrover2/system.cpp

@@ -132,9 +132,6 @@ void Rover::init_ardupilot()
     camera_mount.init();
 #endif
 
-    // run all the vehicle initialization routines
-    init_vehicle();
-
     /*
       setup the 'main loop is dead' check. Note that this relies on
       the RC library being initialised.