ASoC: codecs: lpass-rx-macro: remove redundant initialization of variable hph_pwr_mode

The variable hph_pwr_mode is being initialized with a value that is
never read and it is being updated later with a new value.  The
initialization is redundant and can be removed.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20210215200501.90697-1-colin.king@canonical.com


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