Drop /data/system as a policy file location

/data/system is no longer used as a policy
file location. Use /data/security instead.

Change-Id: Ie77be9e25c67c8a2157c7b6c468f3215a49ead52
diff --git a/init/init.c b/init/init.c
index ede2daa..b28b0ab 100755
--- a/init/init.c
+++ b/init/init.c
@@ -746,7 +746,6 @@
 
 static const struct selinux_opt seopts_prop[] = {
         { SELABEL_OPT_PATH, "/data/security/property_contexts" },
-        { SELABEL_OPT_PATH, "/data/system/property_contexts" },
         { SELABEL_OPT_PATH, "/property_contexts" },
         { 0, NULL }
 };