hwmon: (w83793d) remove redundant assignment to variable res

The variable res is being initialized with a value that
is never read and is being re-assigned a little later on. The
assignment is redundant and hence can be removed.

Signed-off-by: Colin Ian King <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Guenter Roeck <[e-mail]>

drivers/hwmon/w83793.c

···
 static u8 w83793_read_value(struct i2c_client *client, u16 reg)
 {
 	struct w83793_data *data = i2c_get_clientdata(client);
-	u8 res = 0xff;
+	u8 res;
 	u8 new_bank = reg >> 8;
 
 	new_bank |= data->bank & 0xfc;