hwmon: Clean up detect functions

hwmon: Clean up detect functions

As kind is now hard-coded to -1, there is room for code clean-ups.

Signed-off-by: Jean Delvare <[email protected]>
Acked-by: Corentin Labbe <[email protected]>
Cc: "Mark M. Hoffman" <[email protected]>
Cc: Juerg Haefliger <[email protected]>
Cc: Riku Voipio <[email protected]>
Acked-by: "Hans J. Koch" <[email protected]>
Cc: Rudolf Marek <[email protected]>