Remove outdated entries about bt8x8 capture on Linux 2.4 kernels.

Originally committed as revision 24324 to svn://svn.ffmpeg.org/ffmpeg/trunk

doc/faq.texi

@@ -196,19 +196,6 @@ quite logical that there is a small reduction of quality. This is not a bug.
 
 Use @file{-} as file name.
 
-@section Why does the chrominance data seem to be sampled at a different time from the luminance data on bt8x8 captures on Linux?
-
-This is a well-known bug in the bt8x8 driver. For 2.4.26 there is a patch at
-(@url{http://svn.ffmpeg.org/michael/trunk/patches/bttv-420-2.4.26.patch?view=co}). This may also
-apply cleanly to other 2.4-series kernels.
-
-@section How do I avoid the ugly aliasing artifacts in bt8x8 captures on Linux?
-
-Pass 'combfilter=1 lumafilter=1' to the bttv driver. Note though that 'combfilter=1'
-will cause somewhat too strong filtering. A fix is to apply (@url{http://svn.ffmpeg.org/michael/trunk/patches/bttv-comb-2.4.26.patch?view=co})
-or (@url{http://svn.ffmpeg.org/michael/trunk/patches/bttv-comb-2.6.6.patch?view=co})
-and pass 'combfilter=2'.
-
 @section -f jpeg doesn't work.
 
 Try '-f image2 test%d.jpg'.