ASoC: codecs: wsa881x: Drop unused version readout

Driver does not use the device version after reading it from the
registers, so simplify by dropping unneeded code.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://patch.msgid.link/20240710-asoc-wsa88xx-version-v1-1-f1c54966ccde@linaro.org


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