Revert "Use a sharedUID"

<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

    package="it.niedermann.owncloud.notes"

    android:sharedUserId="android.uid.system">

    package="it.niedermann.owncloud.notes">

    <uses-permission android:name="android.permission.INTERNET" />

    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />