Handles null outInfo in deleteSystemPackageLI

This change adds null checks before accessing outInfo in
deleteSystemPackageLI.

Bug: 142083996
Test: manual; remove static dependency on eng build and reboot
Change-Id: If0fd48343e89cbb77ccd25826656194195d5b0cd
(cherry picked from commit 17471016508bb9c9ffb8c3946dda0b4897d722f1)
(cherry picked from commit 5a3888c613bbc8f70a5d9e4d53526a5ae1491bb5)
1 file changed