Remove unnecessary permission READ_PHONE_STATE
Currently we are only using the TelephonyManager class's
`getNetworkOperator` function which doesn't require the
android.permission.READ_PHONE_STATE permission.
Usage in code: org/edx/mobile/util/NetworkUtil.java:99
<uses-permission android:name="android.permission.MANAGE_ACCOUNTS" />
<uses-permission android:name="android.permission.USE_CREDENTIALS" />
- <!-- Required by app for TelephonyManager to determine mobile network carrier ID -->
- <uses-permission android:name="android.permission.READ_PHONE_STATE" />
-
<!-- Sticky broadcast passing a message from one screen and display on another -->
<uses-permission android:name="android.permission.BROADCAST_STICKY" />
