init: remove permissive_or_unconfined()

Bug: 19050686
Change-Id: Ie41c3e4d5aaeb43577ba85a4768a5fdbdd665efb
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>

init.te

 # init switches to init domain (via init.rc).
 type init, domain, mlstrustedsubject;
-permissive_or_unconfined(init)
 tmpfs_domain(init)
 
 # setrlimit