ASoC: sam9g20_wm8731: drop machine_is_xxx

Atmel based boards can now only be used with device tree. Drop non DT
initialization.
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/atmel/sam9g20_wm8731.c

@@ -46,8 +46,6 @@
 #include <sound/pcm_params.h>
 #include <sound/soc.h>
 
-#include <asm/mach-types.h>
-
 #include "../codecs/wm8731.h"
 #include "atmel-pcm.h"
 #include "atmel_ssc_dai.h"
@@ -171,8 +169,6 @@ static int at91sam9g20ek_audio_probe(struct platform_device *pdev)
 	int ret;
 
 	if (!np) {
-		if (!(machine_is_at91sam9g20ek() ||
-			machine_is_at91sam9g20ek_2mmc()))
 		return -ENODEV;
 	}
 
@@ -210,7 +206,6 @@ static int at91sam9g20ek_audio_probe(struct platform_device *pdev)
 	card->dev = &pdev->dev;
 
 	/* Parse device node info */
-	if (np) {
 	ret = snd_soc_of_parse_card_name(card, "atmel,model");
 	if (ret)
 		goto err;
@@ -242,7 +237,6 @@ static int at91sam9g20ek_audio_probe(struct platform_device *pdev)
 
 	of_node_put(codec_np);
 	of_node_put(cpu_np);
-	}
 
 	ret = snd_soc_register_card(card);
 	if (ret) {