hwmon: Cleanup a bogus legacy comment

Cleanup a bogus legacy comment that has been replicated to many
hardware monitoring drivers.

Signed-off-by: Jean Delvare <khali@linux-fr.org>

diff --cc drivers/hwmon/it87.c
Simple merge

diff --cc drivers/hwmon/lm78.c
Simple merge

diff --cc drivers/hwmon/lm85.c
Simple merge

diff --cc drivers/hwmon/sis5595.c
Simple merge

diff --cc drivers/hwmon/via686a.c
Simple merge

diff --cc drivers/hwmon/w83627hf.c
Simple merge

diff --cc drivers/hwmon/w83781d.c
Simple merge