Blackfin: bf533-stamp/bf537-stamp: drop ad1980 from defconfigs

These boards don't have AD1980 modules, and that device is deprecated,
so don't bother building it up by default anymore.
Signed-off-by: NMike Frysinger <vapier@gentoo.org>

arch/blackfin/configs/BF533-STAMP_defconfig

@@ -99,8 +99,6 @@ CONFIG_SND_PCM_OSS=m
 CONFIG_SND_SOC=m
 CONFIG_SND_BF5XX_I2S=m
 CONFIG_SND_BF5XX_SOC_AD73311=m
-CONFIG_SND_BF5XX_AC97=m
-CONFIG_SND_BF5XX_SOC_AD1980=m
 # CONFIG_USB_SUPPORT is not set
 CONFIG_RTC_CLASS=y
 CONFIG_RTC_DRV_BFIN=y

arch/blackfin/configs/BF537-STAMP_defconfig

@@ -110,8 +110,6 @@ CONFIG_SND_PCM_OSS=m
 CONFIG_SND_SOC=m
 CONFIG_SND_BF5XX_I2S=m
 CONFIG_SND_BF5XX_SOC_AD73311=m
-CONFIG_SND_BF5XX_AC97=m
-CONFIG_SND_BF5XX_SOC_AD1980=m
 # CONFIG_USB_SUPPORT is not set
 CONFIG_RTC_CLASS=y
 CONFIG_RTC_DRV_BFIN=y