Revert "Support UID/GID mapping."

This reverts commit c6cd36d3331146ad79de45ee23964074dbff5bc6.

Reason for revert: The device cannot boot after "fastboot flashall"
and goes back into fastboot mode.

Bug: 78561186
Change-Id: I9d1ffb8f17eea3bf52b31369b2d47eed79c65adf
3 files changed