ASoC: SOF: pcm: remove unnecessary function declaration

sof_pcm_setup_connected_widgets() can be a static function in pcm.c. No
need to declare it in the header.
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Link: https://lore.kernel.org/r/20220426171743.171061-9-ranjani.sridharan@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/sof/pcm.c

@@ -82,8 +82,9 @@ void snd_sof_pcm_period_elapsed(struct snd_pcm_substream *substream)
 }
 EXPORT_SYMBOL(snd_sof_pcm_period_elapsed);
 
-int sof_pcm_setup_connected_widgets(struct snd_sof_dev *sdev, struct snd_soc_pcm_runtime *rtd,
-				    struct snd_sof_pcm *spcm, int dir)
+static int
+sof_pcm_setup_connected_widgets(struct snd_sof_dev *sdev, struct snd_soc_pcm_runtime *rtd,
+				struct snd_sof_pcm *spcm, int dir)
 {
 	struct snd_soc_dai *dai;
 	int ret, j;

sound/soc/sof/sof-audio.h

@@ -501,7 +501,5 @@ int get_token_uuid(void *elem, void *object, u32 offset);
 int sof_update_ipc_object(struct snd_soc_component *scomp, void *object, enum sof_tokens token_id,
 			  struct snd_sof_tuple *tuples, int num_tuples,
 			  size_t object_size, int token_instance_num);
-int sof_pcm_setup_connected_widgets(struct snd_sof_dev *sdev, struct snd_soc_pcm_runtime *rtd,
-				    struct snd_sof_pcm *spcm, int dir);
 u32 vol_compute_gain(u32 value, int *tlv);
 #endif