V4L/DVB: feature-removal: announce videotext.h removal

	Generally invoked by accident today.

	Seen as doing more harm than good.

Who:	Len Brown <len.brown@intel.com>

----------------------------

What:	video4linux /dev/vtx teletext API support

When:	2.6.35

Files:	drivers/media/video/saa5246a.c drivers/media/video/saa5249.c

	include/linux/videotext.h

Why:	The vtx device nodes have been superseded by vbi device nodes

	for many years. No applications exist that use the vtx support.

	Of the two i2c drivers that actually support this API the saa5249

	has been impossible to use for a year now and no known hardware

	that supports this device exists. The saa5246a is theoretically

	supported by the old mxb boards, but it never actually worked.

	In summary: there is no hardware that can use this API and there

	are no applications actually implementing this API.

	The vtx support still reserves minors 192-223 and we would really

	like to reuse those for upcoming new functionality. In the unlikely

	event that new hardware appears that wants to use the functionality

	provided by the vtx API, then that functionality should be build

	around the sliced VBI API instead.

Who:	Hans Verkuil <hverkuil@xs4all.nl>