Get visibility allow list before uninstalling package

The package removed broadcast should be only sent to the packages in
visibility allow list. However, current broadcast allow list is null
when uninstalling. This indicates that every package could receive
this broadcast.

Fix: 184010320
Test: atest PackageManagerTests AppsFilterTest AppEnumerationTests
Change-Id: I140bfa093dcc82980f671c60c973882546eaf899