As AOSP does not support the device admin API or the older
SEManager system app, just drop the allow rules associated with
permitting SELinux management via device admin or a system app.

Change-Id: Icdf40c9e6d343b19c156e4c7aea4cfb8c5f234ad
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>