ASoC: Kconfig: remove not used SND_AT91_SOC_AFEB9260 option

Now that the driver snd-soc-afeb9260.c is deleted, remove its Kconfig option.
Reported-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/atmel/Kconfig

@@ -52,12 +52,3 @@ config SND_AT91_SOC_SAM9X5_WM8731
 	help
 	  Say Y if you want to add support for audio SoC on an
 	  at91sam9x5 based board that is using WM8731 codec.
-
-config SND_AT91_SOC_AFEB9260
-	tristate "SoC Audio support for AFEB9260 board"
-	depends on ARCH_AT91 && ATMEL_SSC && ARCH_AT91 && MACH_AFEB9260 && SND_ATMEL_SOC
-	select SND_ATMEL_SOC_PDC
-	select SND_ATMEL_SOC_SSC
-	select SND_SOC_TLV320AIC23_I2C
-	help
-	  Say Y here to support sound on AFEB9260 board.