Revert "Enable BLE (Bluetooth Smart 4.0) for all tuna devices"

This reverts commit 6af7b23f1e4ba94f085a18396567922fa7dd0f3b.

Change-Id: I970390165f87e62091bbb6aba4471b2d119b9373
Enable Bluetooth 4.0 (BLE) for tuna-based devices

 - Needed to:
     http://review.cyanogenmod.org/46543
     http://review.cyanogenmod.org/46989

Change-Id: If299d291a401ddeff17b6d0db5b2df1059ea3a18