delete unused MAV_TEST_PAR

src/modules/mavlink/mavlink_main.cpp

@@ -577,9 +577,6 @@ void Mavlink::mavlink_update_system()
 		_param_use_hil_gps = param_find("MAV_USEHILGPS");
 		_param_forward_externalsp = param_find("MAV_FWDEXTSP");
 		_param_broadcast = param_find("MAV_BROADCAST");
-
-		/* test param - needs to be referenced, but is unused */
-		(void)param_find("MAV_TEST_PAR");
 	}
 
 	/* update system and component id */

src/modules/mavlink/mavlink_params.c

@@ -112,15 +112,3 @@ PARAM_DEFINE_INT32(MAV_FWDEXTSP, 1);
  * @group MAVLink
  */
 PARAM_DEFINE_INT32(MAV_BROADCAST, 0);
-
-/**
- * Test parameter
- *
- * This parameter is not actively used by the system. Its purpose is to allow
- * testing the parameter interface on the communication level.
- *
- * @group MAVLink
- * @min -1000
- * @max 1000
- */
-PARAM_DEFINE_INT32(MAV_TEST_PAR, 1);