ASoC: wm9712: 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 for matching instead and the
defines are unused. The last user of these defines was removed in commit
f0fba2ad1b ("ASoC: multi-component - ASoC Multi-Component Support"). So
remove the defines as well.

This also means the wm9712.h file no longer has any content and can be
removed.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/pxa/e800_wm9712.c

@@ -21,7 +21,6 @@
 #include <mach/audio.h>
 #include <mach/eseries-gpio.h>
 
-#include "../codecs/wm9712.h"
 #include "pxa2xx-ac97.h"
 
 static int e800_spk_amp_event(struct snd_soc_dapm_widget *w,

sound/soc/pxa/em-x270.c

@@ -30,7 +30,6 @@
 #include <asm/mach-types.h>
 #include <mach/audio.h>
 
-#include "../codecs/wm9712.h"
 #include "pxa2xx-ac97.h"
 
 static struct snd_soc_dai_link em_x270_dai[] = {

sound/soc/pxa/palm27x.c

@@ -27,7 +27,6 @@
 #include <mach/audio.h>
 #include <linux/platform_data/asoc-palm27x.h>
 
-#include "../codecs/wm9712.h"
 #include "pxa2xx-ac97.h"
 
 static struct snd_soc_jack hs_jack;

sound/soc/pxa/tosa.c

@@ -31,7 +31,6 @@
 #include <mach/tosa.h>
 #include <mach/audio.h>
 
-#include "../codecs/wm9712.h"
 #include "pxa2xx-ac97.h"
 
 #define TOSA_HP        0