ASoC: SOF: stream-ipc: remove unnecessary MODULE_LICENSE

This file is part of the snd-sof module, there's no reason to re-add the
MODULE_LICENSE here.

Signed-off-by: Pierre-Louis Bossart <[email protected]>
Reviewed-by: Bard Liao <[email protected]>
Reviewed-by: Daniel Baluta <[email protected]>
Reviewed-by: Péter Ujfalusi <[email protected]>
Link: https://msgid.link/r/[email protected]
Signed-off-by: Mark Brown <[email protected]>

Author: plbossart

sound/soc/sof/stream-ipc.c

@@ -125,5 +125,3 @@ int sof_stream_pcm_close(struct snd_sof_dev *sdev,
 	return 0;
 }
 EXPORT_SYMBOL(sof_stream_pcm_close);
-
-MODULE_LICENSE("Dual BSD/GPL");