hdddirect was removed in commit 929ba563f1bc7195c4981b8e139c432b2cc388ea.
(From OE-Core rev: 7a91a9818057d69cba32db2428ffc1a1ebb3876e)
Signed-off-by: Daniel Ammann <daniel.ammann@bytesatwork.ch>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>