Remove pointless clause

This condition didn't do anything and was misleading, SEPOLICY variables
are only relevant when selinux is built in the first place

Change-Id: I423cf0e5b04fd9e92f4cc9c33d13d4875c9aafc6
Merge CyanogenMod

Change-Id: Ibf8b58b12e48b751f6be33bfbd336c8d200f920a