ASoC: dt-bindings: qcom,q6core: remove binding

qcom,q6core is already described in soc/qcom/qcom,apr.yaml.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220906121110.301900-1-krzysztof.kozlowski@linaro.org


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