xv: Remove obsolete comments in EncodingInfo and QueryEncodings
The padding in EncodingInfo (struct) and QueryEncodings (reply) has been
fixed upstream:
Xvproto: fix xvEncodingInfo to match actual wire protocol
http://cgit.freedesktop.org/xorg/proto/videoproto/commit/?id=d970512
and
Xvproto.h: fix xvQueryEncodingsReply to match actual wire protocol
http://cgit.freedesktop.org/xorg/proto/videoproto/commit/?id=1a96222
So, we can remove the comments.
Signed-off-by: Daniel Martin <consume.noise@gmail.com>
Reviewed-by: Arnaud Fontaine <arnau@debian.org>