ARM: pxa: zylonite: use the new ac97 bus support

Now the PXA is converted to new ac97 bus support, the wm9713 is
automatically detected and probed. Remove it from the platform bus.
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>

arch/arm/mach-pxa/zylonite.c

@@ -47,16 +47,6 @@ int wm9713_irq;
 int lcd_id;
 int lcd_orientation;
 
-struct platform_device pxa_device_wm9713_audio = {
-	.name		= "wm9713-codec",
-	.id		= -1,
-};
-
-static void __init zylonite_init_wm9713_audio(void)
-{
-	platform_device_register(&pxa_device_wm9713_audio);
-}
-
 static struct resource smc91x_resources[] = {
 	[0] = {
 		.start	= ZYLONITE_ETH_PHYS + 0x300,
@@ -428,7 +418,6 @@ static void __init zylonite_init(void)
 	zylonite_init_nand();
 	zylonite_init_leds();
 	zylonite_init_ohci();
-	zylonite_init_wm9713_audio();
 }
 
 MACHINE_START(ZYLONITE, "PXA3xx Platform Development Kit (aka Zylonite)")