[ARM] pxa: remove now unnecessary pxa_gpio_mode() calls in ac97

Now most (if not all) PXA platforms have been switched to the new MFP
API, it's rather safe to remove these unnecessary pxa_gpio_mode() calls
in pxa2xx-ac97-lib.c now.

Cc: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>

sound/arm/pxa2xx-ac97-lib.c

@@ -22,7 +22,6 @@
 
 #include <asm/irq.h>
 #include <mach/regs-ac97.h>
-#include <mach/pxa2xx-gpio.h>
 #include <mach/audio.h>
 
 static DEFINE_MUTEX(car_mutex);
@@ -338,13 +337,6 @@ int __devinit pxa2xx_ac97_hw_probe(struct platform_device *dev)
 			reset_gpio = 113;
 	}
 
-	if (cpu_is_pxa25x() || cpu_is_pxa27x()) {
-		pxa_gpio_mode(GPIO31_SYNC_AC97_MD);
-		pxa_gpio_mode(GPIO30_SDATA_OUT_AC97_MD);
-		pxa_gpio_mode(GPIO28_BITCLK_AC97_MD);
-		pxa_gpio_mode(GPIO29_SDATA_IN_AC97_MD);
-	}
-
 	if (cpu_is_pxa27x()) {
 		/* Use GPIO 113 as AC97 Reset on Bulverde */
 		pxa27x_assert_ac97reset(reset_gpio, 0);