ASoC: Don't specify the DMA driver for Goni baseband link

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Jassi Brar <jassisinghbrar@gmail.com>
Acked-by: Liam Girdwood <lrg@ti.com>

sound/soc/samsung/goni_wm8994.c

@@ -246,7 +246,6 @@ static struct snd_soc_dai_link goni_dai[] = {
 	.stream_name = "Voice",
 	.cpu_dai_name = "goni-voice-dai",
 	.codec_dai_name = "wm8994-aif2",
-	.platform_name = "samsung-audio",
 	.codec_name = "wm8994-codec.0-001a",
 	.ops = &goni_voice_ops,
 },