Delete AirQuality.h

libraries/Grove_-_Air_quality_sensor/AirQuality.h

-/*
-  AirQuality library v1.0
-  2010 Copyright (c) Seeed Technology Inc.  All right reserved.
-
-  Original Author: Bruce.Qin
-
-  This library is free software; you can redistribute it and/or
-  modify it under the terms of the GNU Lesser General Public
-  License as published by the Free Software Foundation; either
-  version 2.1 of the License, or (at your option) any later version.
-
-  This library is distributed in the hope that it will be useful,
-  but WITHOUT ANY WARRANTY; without even the implied warranty of
-  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-  Lesser General Public License for more details.
-
-  You should have received a copy of the GNU Lesser General Public
-  License along with this library; if not, write to the Free Software
-  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
-*/
-#ifndef __AIRQUALITY_H__
-#define __AIRQUALITY_H__
-#include"Arduino.h"
-class AirQuality
-{
-public:
-    int i ;
-    long vol_standard;
-    int init_voltage;
-    int first_vol;
-    int last_vol;
-    long temp;
-    int counter;
-    boolean timer_index;
-    boolean error;
-    void init(int pin);
-    int slope(void);
-private:
-    int _pin;
-    void avgVoltage(void);
-};
-#endif