Don't set user restrictions directly on USER_ALL.

Bug: 269984638

Test: btest a.d.c.InstallUnknownSourcesTest
Change-Id: Id71b1fb3af41afe722d336d33628bc1b222205c8
(cherry picked from commit b2d13e50b4b1366abaefb87134de4577a6916688)
Merged-In: Id71b1fb3af41afe722d336d33628bc1b222205c8
1 file changed