ASoC: stac9766: Remove unused DAI ID defines

The DAI ID defines are back from the time when DAIs were referenced by a
numerical ID. These days a string is used instead and the defines are
unused.
Signed-off-by: NLars-Peter Clausen <lars@metafoo.de>
Signed-off-by: NMark Brown <broonie@kernel.org>

sound/soc/codecs/stac9766.h

@@ -10,8 +10,4 @@
 #define AC97_STAC_ANALOG_SPECIAL (AC97_STAC_PAGE0 | 0x6E)
 #define AC97_STAC_STEREO_MIC 0x78
 
-/* STAC9766 DAI ID's */
-#define STAC9766_DAI_AC97_ANALOG		0
-#define STAC9766_DAI_AC97_DIGITAL		1
-
 #endif