From 7ef7db717c2e042e9f178160cfb26bad76d61296 Mon Sep 17 00:00:00 2001
From: murata <ma2maru@gmail.com>
Date: Sun, 11 Sep 2022 09:59:08 +0900
Subject: [PATCH] AP_Airspeed: Delete unused definitions

---
 libraries/AP_Airspeed/Airspeed_Calibration.cpp | 2 --
 1 file changed, 2 deletions(-)

diff --git a/libraries/AP_Airspeed/Airspeed_Calibration.cpp b/libraries/AP_Airspeed/Airspeed_Calibration.cpp
index b6571ea0c2..17380c0519 100644
--- a/libraries/AP_Airspeed/Airspeed_Calibration.cpp
+++ b/libraries/AP_Airspeed/Airspeed_Calibration.cpp
@@ -6,14 +6,12 @@
  */
 
 #include <AP_Common/AP_Common.h>
-#include <AP_HAL/AP_HAL.h>
 #include <AP_Math/AP_Math.h>
 #include <GCS_MAVLink/GCS.h>
 #include <AP_Baro/AP_Baro.h>
 
 #include "AP_Airspeed.h"
 
-extern const AP_HAL::HAL& hal;
 
 // constructor - fill in all the initial values
 Airspeed_Calibration::Airspeed_Calibration()