Revert "Extending systemUserOnly attribute to Providers and Services"

Revert submission 25631646-systemUserOnly_manifestAttribute

Reason for revert: Likely culprit for b/319437162. Will be running through ABTD before submitting the revert.

Reverted changes: /q/submissionid:25631646-systemUserOnly_manifestAttribute

Change-Id: I314e6a9c97cf2735506974735b2e7a0bf86e267e
12 files changed