Remove backup rules

There is nothing to backup.

Signed-off-by: Arseniy Graur <argraur@gmail.com>

Author: argraur

app/src/main/AndroidManifest.xml

@@ -22,9 +22,7 @@
     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
 
     <application
-        android:allowBackup="true"
-        android:dataExtractionRules="@xml/data_extraction_rules"
-        android:fullBackupContent="@xml/backup_rules"
+        android:allowBackup="false"
         android:usesCleartextTraffic="true"
         android:icon="@mipmap/ic_launcher"
         android:label="@string/app_name"