Handles null outInfo in deleteSystemPackageLI

This change adds null checks before accessing outInfo in
deleteSystemPackageLI.

Bug: 139907865
Test: manual; remove static dependency on eng build and reboot
Change-Id: If0fd48343e89cbb77ccd25826656194195d5b0cd
Merged-in: If0fd48343e89cbb77ccd25826656194195d5b0cd
1 file changed