remove code that was not being used at all, proper cleanup

import android.os.BatteryManager;

import android.os.Bundle;

import android.os.Handler;

import android.os.IPowerManager;

import android.os.Message;

import android.os.ServiceManager;

import android.os.SystemClock;

import android.text.format.DateUtils;

import android.widget.TextView;

import com.android.internal.app.IBatteryStats;

public class BatteryInfo extends Activity {

    private TextView mStatus;

    private TextView mTemperature;

    private TextView mTechnology;

    private TextView mUptime;

    private IBatteryStats mBatteryStats;

    private IPowerManager mScreenStats;

    private static final int EVENT_TICK = 1;

                case EVENT_TICK:

                    updateBatteryStats();

                    sendEmptyMessageDelayed(EVENT_TICK, 1000);

                    break;

            }

        }

        mTemperature = (TextView)findViewById(R.id.temperature);

        mUptime = (TextView) findViewById(R.id.uptime);

        // Get awake time plugged in and on battery

        mBatteryStats = IBatteryStats.Stub.asInterface(ServiceManager.getService("batteryinfo"));

        mScreenStats = IPowerManager.Stub.asInterface(ServiceManager.getService(POWER_SERVICE));

        // Get awake time

        mHandler.sendEmptyMessageDelayed(EVENT_TICK, 1000);

        registerReceiver(mIntentReceiver, mIntentFilter);