staging: iio: light: isl29018/28: remove I2C_CLASS_HWMON .class setting

I2C_CLASS_HWMON is for a hardware monitoring chip wanting
auto-detection. IIO drivers don't typically use .class.
Remove it.

Signed-off-by: Alison Schofield <[e-mail]>
Cc: Daniel Baluta <[e-mail]>
Acked-by: Laxman Dewangan <[e-mail]>
Acked-by: Wolfram Sang <[e-mail]>
Signed-off-by: Jonathan Cameron <[e-mail]>

drivers/staging/iio/light/isl29018.c

···
 MODULE_DEVICE_TABLE(of, isl29018_of_match);
 
 static struct i2c_driver isl29018_driver = {
-	.class	= I2C_CLASS_HWMON,
 	.driver	 = {
 			.name = "isl29018",
 			.acpi_match_table = ACPI_PTR(isl29018_acpi_match),

drivers/staging/iio/light/isl29028.c

···
 MODULE_DEVICE_TABLE(of, isl29028_of_match);
 
 static struct i2c_driver isl29028_driver = {
-	.class	= I2C_CLASS_HWMON,
 	.driver  = {
 		.name = "isl29028",
 		.of_match_table = isl29028_of_match,