ASoC: Intel: remove unused function

The function get_current_pipe_id() was not being used.
Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/intel/atom/sst-mfld-platform-pcm.c

@@ -368,23 +368,6 @@ static void sst_media_close(struct snd_pcm_substream *substream,
 	kfree(stream);
 }
 
-static inline unsigned int get_current_pipe_id(struct snd_soc_dai *dai,
-					       struct snd_pcm_substream *substream)
-{
-	struct sst_data *sst = snd_soc_dai_get_drvdata(dai);
-	struct sst_dev_stream_map *map = sst->pdata->pdev_strm_map;
-	struct sst_runtime_stream *stream =
-			substream->runtime->private_data;
-	u32 str_id = stream->stream_info.str_id;
-	unsigned int pipe_id;
-
-	pipe_id = map[str_id].device_id;
-
-	dev_dbg(dai->dev, "got pipe_id = %#x for str_id = %d\n",
-			pipe_id, str_id);
-	return pipe_id;
-}
-
 static int sst_media_prepare(struct snd_pcm_substream *substream,
 		struct snd_soc_dai *dai)
 {