Revert  SECURITY FIX: Fix package uids being reused between uninstall and rei…

…nstall of different packages.

Policies for older packages were being granted to the newly installed package that got the recyled uid.

Change-Id: I6c74cf6762e8da10e09d5cf5d94e9f826e47f24d

This reverts d463ff433a4147f7d92eb04527142c6809475d3b