ASoC: amd: acp: Drop superfluous mmap callback

Remove mmap callback as ASoC AMD drivers just call
the standard mmap handler.
Signed-off-by: Venkata Prasad Potturu <venkataprasad.potturu@amd.com>
Reviewed-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Link: https://lore.kernel.org/r/20220721062043.3016985-2-venkataprasad.potturu@amd.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/amd/acp/acp-platform.c

@@ -258,13 +258,6 @@ static int acp_dma_new(struct snd_soc_component *component,
 	return 0;
 }
 
-static int acp_dma_mmap(struct snd_soc_component *component,
-			struct snd_pcm_substream *substream,
-			struct vm_area_struct *vma)
-{
-	return snd_pcm_lib_default_mmap(substream, vma);
-}
-
 static int acp_dma_close(struct snd_soc_component *component,
 			 struct snd_pcm_substream *substream)
 {
@@ -288,7 +281,6 @@ static const struct snd_soc_component_driver acp_pcm_component = {
 	.close			= acp_dma_close,
 	.hw_params		= acp_dma_hw_params,
 	.pointer		= acp_dma_pointer,
-	.mmap			= acp_dma_mmap,
 	.pcm_construct		= acp_dma_new,
 	.legacy_dai_naming	= 1,
 };