oak: Remove config in adhd

The config files will be installed in chromeos-bsp-oak.

BUG=chrome-os-partner:40164
TEST=`cros_workon-oak start adhd; emerge-oak adhd;
     emerge-oak chromeos-bsp-oak`. No conflict, ucm-config files
     installed in /build/oak/usr/share/alsa/ucm/ .
CQ-DEPEND=CL:282974

Change-Id: Iebc92af29871110fc345001ebe9deaf1db7253b5
Reviewed-on: https://chromium-review.googlesource.com/282904
Reviewed-by: Dylan Reid <dgreid@chromium.org>
Commit-Queue: Nicolas Boichat <drinkcat@chromium.org>
Tested-by: Nicolas Boichat <drinkcat@chromium.org>
4 files changed