V4L/DVB (5182): Remove #if 0 section from videodev2.h

Remove a section containing basically ideas for future sliced VBI standards.
This can be resurrected should any of this be actually implemented. For now
it only pollutes this header file.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

include/linux/videodev2.h

@@ -1206,7 +1206,6 @@ struct v4l2_sliced_vbi_format
 #define V4L2_SLICED_VBI_525             (V4L2_SLICED_CAPTION_525)
 #define V4L2_SLICED_VBI_625             (V4L2_SLICED_TELETEXT_B | V4L2_SLICED_VPS | V4L2_SLICED_WSS_625)
 
-
 struct v4l2_sliced_vbi_cap
 {
 	__u16   service_set;