ASoC: Intel: skl_hda_dsp_generic: remove hdac-hdmi support

Since this machine driver has no longer been enumerated by SKL
platform driver, we could remove hdac-hdmi support code just like
what we did to other SOF machine drivers.

Signed-off-by: Brent Lu <brent.lu@intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Link: https://patch.msgid.link/20240827123215.258859-13-yung-chuan.liao@linux.intel.com


Signed-off-by: Mark Brown <broonie@kernel.org>