ASoC: max98925: drop driver pm=NULL assignment

There is no point to explicitly set driver .pm field to NULL.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20201125164452.89239-38-krzk@kernel.orgSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/max98925.c

@@ -639,7 +639,6 @@ static struct i2c_driver max98925_i2c_driver = {
 	.driver = {
 		.name = "max98925",
 		.of_match_table = of_match_ptr(max98925_of_match),
-		.pm = NULL,
 	},
 	.probe  = max98925_i2c_probe,
 	.id_table = max98925_i2c_id,