xkb: Comment out Doodads

xkb: Comment out Doodads

Doodads are known to be broken (*). Comment them out until they can be
handled properly.

(*) One problem is that TextDoodad and LogoDoodad have variadic lists at
the end. But, they're within a union with other fixed size Doodads. A
union doesn't have a hint which field is in use and therefor the code
generator (at least c_client.py) just creates a generic iterator for the
Doodad union, which fails for TextDoodad and LogoDoodad.

Signed-off-by: Daniel Martin <consume.noise@gmail.com>
Reviewed-By: Ran Benita <ran234@gmail.com>