remove more appindex stuff

app/src/main/java/info/nightscout/android/medtronic/MainActivity.java

@@ -12,7 +12,6 @@ import android.content.SharedPreferences;
 import android.content.SharedPreferences.OnSharedPreferenceChangeListener;
 import android.hardware.usb.UsbDevice;
 import android.hardware.usb.UsbManager;
-import android.net.Uri;
 import android.os.BatteryManager;
 import android.os.Bundle;
 import android.os.Handler;
@@ -39,10 +38,6 @@ import com.github.mikephil.charting.data.LineData;
 import com.github.mikephil.charting.data.realm.implementation.RealmLineDataSet;
 import com.github.mikephil.charting.interfaces.datasets.ILineDataSet;
 import com.github.mikephil.charting.utils.ColorTemplate;
-import com.google.android.gms.appindexing.Action;
-import com.google.android.gms.appindexing.AppIndex;
-import com.google.android.gms.appindexing.Thing;
-import com.google.android.gms.common.api.GoogleApiClient;
 import com.mikepenz.google_material_typeface_library.GoogleMaterial;
 import com.mikepenz.materialdrawer.AccountHeaderBuilder;
 import com.mikepenz.materialdrawer.Drawer;