hwmon: Discard useless I2C driver IDs

Many I2C hwmon drivers define a driver ID but no other code references
these, meaning that they are useless. Discard them, along with a few
IDs which are defined but never used at all.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>

drivers/hwmon/ds1621.c

@@ -94,7 +94,6 @@ static struct i2c_driver ds1621_driver = {
 	.driver = {
 		.name	= "ds1621",
 	},
-	.id		= I2C_DRIVERID_DS1621,
 	.attach_adapter	= ds1621_attach_adapter,
 	.detach_client	= ds1621_detach_client,
 };