ASoC: sun4i-spdif: remove legacy dapm components

commit 96e53c41e1f81c9e9d1ce38d3f28b95668b71dcf upstream.

The dapm components are now handled by the ALSA SoC SPDIF DIT driver
so can be removed.

Signed-off-by: Marcus Cooper <codekipper@gmail.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>