LineageParts: Update IA preferences declarations to match AOSP settings

SettingsLib was refactored in Q and we no longer need our
custom additions for priority order to be respected.

Also squashed in:
Author: LuK1337 <priv.luk@gmail.com>
Date:   Tue Sep 10 20:34:26 2019 +0200
    LineageParts: Inject Trust into privacy settings
    Change-Id: I0db12eea825415e747cac47fac5dc32e7239cf4d

Change-Id: Iab95feeaf6cabf80ae6a0949b6bb75af6212e6a2