Revert "add low ram device flag"

This reverts commit 1a49f71825dc77fe1f3e12968e9311f799f6d4be.

Conflicts:
	device.mk

Change-Id: I31e3d134e13f16261d7873dc305b9b1511957fb5
Merge branch 'cm-11.0' of https://github.com/Mustaavalkosta/android_device_htc_ace into cd-4.4