hwmon: (nct6775) delete some extension lines

This code can fit on one line. No need to break it up.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20211215114050.GB14967@kili


Signed-off-by: Guenter Roeck <linux@roeck-us.net>