Revert "SELinux: su: update policies"

This reverts commit 04fd9192b05ae2655560a444711fe8859430f439.

Change-Id: I69e51fb6c151a48972cf81947c1c59c6f26f60e9
(cherry picked from commit 7cd698341ffe2e58570a2448b033d3e78d3b5250)