Rover: removed set_default_filter() call

APMrover2/Parameters.pde

@@ -569,10 +569,6 @@ static void load_parameters(void)
 	    cliSerial->printf_P(PSTR("load_all took %luus\n"), micros() - before);
 	}
 
-    // set a lower default filter frequency for rovers, due to very
-    // high vibration levels on rough surfaces
-    ins.set_default_filter(5);
-
     // set a more reasonable default NAVL1_PERIOD for rovers
     L1_controller.set_default_period(8);
 }