Remove OLD_ION flag

This has now a different meaning and applies only to libion. The
default status of display-caf changed to AOSP compatibility

Change-Id: I96c89e2f945281ff1aefacce5d9a5113459b13e7
Merge branch 'cm-10.1' of github.com:/CyanogenMod/android_device_lge_mako into cm-10.1