Commander: don't publish RC_IN_MODE to vehicle_status

This just contains the content of the parameter which
is redundant and results in multiple sources of truth.

src/modules/commander/Arming/PreFlightCheck/PreFlightCheck.cpp

@@ -197,7 +197,10 @@ bool PreFlightCheck::preflightCheck(orb_advert_t *mavlink_log_pub, vehicle_statu
 	}
 
 	/* ---- RC CALIBRATION ---- */
-	if (status.rc_input_mode == vehicle_status_s::RC_IN_MODE_DEFAULT) {
+	int32_t com_rc_in_mode{0};
+	param_get(param_find("COM_RC_IN_MODE"), &com_rc_in_mode);
+
+	if (com_rc_in_mode == 0) {
 		if (rcCalibrationCheck(mavlink_log_pub, report_failures, status.is_vtol) != OK) {
 			if (report_failures) {
 				mavlink_log_critical(mavlink_log_pub, "RC calibration check failed");

src/modules/commander/Commander.cpp

@@ -659,7 +659,6 @@ Commander::Commander() :
 	_status_flags.condition_system_sensors_initialized = true;
 
 	// We want to accept RC inputs as default
-	_status.rc_input_mode = vehicle_status_s::RC_IN_MODE_DEFAULT;
 	_status.nav_state = vehicle_status_s::NAVIGATION_STATE_MANUAL;
 	_status.nav_state_timestamp = hrt_absolute_time();
 	_status.arming_state = vehicle_status_s::ARMING_STATE_INIT;
@@ -1840,8 +1839,6 @@ Commander::run()
 
 			_status_flags.avoidance_system_required = _param_com_obs_avoid.get();
 
-			_status.rc_input_mode = _param_rc_in_off.get();
-
 			_arm_requirements.arm_authorization = _param_arm_auth_required.get();
 			_arm_requirements.esc_check = _param_escs_checks_required.get();
 			_arm_requirements.global_position = !_param_arm_without_gps.get();

src/modules/commander/Commander.hpp

@@ -245,8 +245,6 @@ private:
 		(ParamInt<px4::params::COM_FLIGHT_UUID>) _param_flight_uuid,
 		(ParamInt<px4::params::COM_TAKEOFF_ACT>) _param_takeoff_finished_action,
 
-		(ParamInt<px4::params::COM_RC_IN_MODE>) _param_rc_in_off,
-
 		// Circuit breakers
 		(ParamInt<px4::params::CBRK_SUPPLY_CHK>) _param_cbrk_supply_chk,
 		(ParamInt<px4::params::CBRK_USB_CHK>) _param_cbrk_usb_chk,