ASoC: max98371: 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/20201125164452.89239-37-krzk@kernel.orgSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/max98371.c

@@ -419,7 +419,6 @@ MODULE_DEVICE_TABLE(of, max98371_of_match);
 static struct i2c_driver max98371_i2c_driver = {
 	.driver = {
 		.name = "max98371",
-		.pm = NULL,
 		.of_match_table = of_match_ptr(max98371_of_match),
 	},
 	.probe  = max98371_i2c_probe,