Revert "Make init re-exec itself for its SELinux domain transition."

shamu isn't booting.

This reverts commit adf0d1bbfa4bc560c2106f14afa8258a11c48bf6.

Change-Id: I89d568838cebbe14cc4a8ae3843f0f1ac54987af
diff --git a/rootdir/init.rc b/rootdir/init.rc
index 4d9c4f3..a5ea60a 100644
--- a/rootdir/init.rc
+++ b/rootdir/init.rc
@@ -14,6 +14,13 @@
     # Set init and its forked children's oom_adj.
     write /proc/1/oom_score_adj -1000
 
+    # Apply strict SELinux checking of PROT_EXEC on mmap/mprotect calls.
+    write /sys/fs/selinux/checkreqprot 0
+
+    # Set the security context for the init process.
+    # This should occur before anything else (e.g. ueventd) is started.
+    setcon u:r:init:s0
+
     # Set the security context of /adb_keys if present.
     restorecon /adb_keys