audiohal: Remove case value not in enumerated type

hardware/samsung_slsi-linaro/exynos/libaudio/audiohal/audio_hw.c:550:22: error: case value not in enumerated type 'audio_devices_t' [-Werror,-Wswitch]
                case AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET|AUDIO_DEVICE_OUT_SPEAKER:

Change-Id: I06c38ae0187f61bd5b6fbd8ed1c492fe3b4e186e
diff --git a/libaudio/audiohal/audio_hw.c b/libaudio/audiohal/audio_hw.c
index 1bcdbcd..dbd69b4 100644
--- a/libaudio/audiohal/audio_hw.c
+++ b/libaudio/audiohal/audio_hw.c
@@ -547,8 +547,6 @@
                 case AUDIO_DEVICE_OUT_BLUETOOTH_SCO:
                 case AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET:
                 case AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT:
-                case AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET|AUDIO_DEVICE_OUT_SPEAKER:
-                    ret = DEVICE_BT_HEADSET;
                     break;
                 case AUDIO_DEVICE_OUT_USB_DEVICE:
                     ret = DEVICE_USB_HEADSET;