ASoC: apple: mca: Remove stale release of DMA channels

ASoC: apple: mca: Remove stale release of DMA channels

The commit 4ec8179c212f ("ASoC: apple: mca: Postpone requesting of DMA
channels") shuffled around with the requesting and releasing of DMA
channels. It left behind stale release calls from within
apple_mca_release, remove those now.

Fixes: 4ec8179c212f ("ASoC: apple: mca: Postpone requesting of DMA channels")
Signed-off-by: Martin Povišer <povik+lin@cutebit.org>
Link: https://lore.kernel.org/r/20220927113426.49724-2-povik+lin@cutebit.org
Signed-off-by: Mark Brown <broonie@kernel.org>