Revert "RESTRICT AUTOMERGE Prevent non-admin users from deleting system apps."
This reverts commit a7621e0c.
Reason for revert: Regression, DELETE_SYSTEM_APP flag no longer works
Change-Id: I7386d1ba3d61b95836b85c52214c83b216c478e8
(cherry picked from commit 49d8f932)
Merged-In: I7386d1ba3d61b95836b85c52214c83b216c478e8