ASoC: Intel: realtek-common: remove 2-spk rt1015p config

The original code for rt1015p could support 1 or 2 rt1015p device
instances in ACPI. However, all designs implement only 1 instance in
ACPI table so we remove the code segment which is for 2 instances.

Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Brent Lu <brent.lu@intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20240509163418.67746-5-pierre-louis.bossart@linux.intel.com


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