delete module's redundant print_status()

- we can already get the running status from ModuleBase and the other misc information is already available through perf or uORB

src/modules/airspeed_selector/airspeed_selector_main.cpp

@@ -90,8 +90,6 @@ public:
 	/* run the main loop */
 	void Run() override;
 
-	int print_status() override;
-
 private:
 	static constexpr int MAX_NUM_AIRSPEED_SENSORS = 3; /**< Support max 3 airspeed sensors */
 	enum airspeed_index {
@@ -590,19 +588,6 @@ int AirspeedModule::custom_command(int argc, char *argv[])
 	return print_usage("unknown command");
 }
 
-int AirspeedModule::print_status()
-{
-	perf_print_counter(_perf_elapsed);
-
-	int instance = 0;
-	uORB::SubscriptionData<airspeed_validated_s> est{ORB_ID(airspeed_validated), (uint8_t)instance};
-	est.update();
-	PX4_INFO("Number of airspeed sensors: %i", _number_of_airspeed_sensors);
-	print_message(est.get());
-
-	return 0;
-}
-
 int AirspeedModule::print_usage(const char *reason)
 {
 	if (reason) {