staging/skein: move all threefish block functions to one file

move all threefish block functions to one file, remove unneeded include

Signed-off-by: Jake Edge <jake@lwn.net>
Acked-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
5 files changed