ALSA: hda - Remove old models for STAC9872 from the document

Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/Documentation/sound/alsa/HD-Audio-Models.txt b/Documentation/sound/alsa/HD-Audio-Models.txt
index 64eb110..75914bc 100644
--- a/Documentation/sound/alsa/HD-Audio-Models.txt
+++ b/Documentation/sound/alsa/HD-Audio-Models.txt
@@ -352,5 +352,4 @@
 
 STAC9872
 ========
-  vaio		Setup for VAIO FE550G/SZ110
-  vaio-ar Setup for VAIO AR
+  N/A