hwmon: (ntc_thermistor) Drop OF dependency

The driver has been augmented to just use device properties
so the OF dependency can be dropped.

Cc: Peter Rosin <peda@axentia.se>
Cc: Chris Lesiak <chris.lesiak@licor.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20211215142933.1409324-1-linus.walleij@linaro.orgSigned-off-by: Guenter Roeck <linux@roeck-us.net>

drivers/hwmon/Kconfig

@@ -1415,7 +1415,6 @@ config SENSORS_PC87427
 
 config SENSORS_NTC_THERMISTOR
 	tristate "NTC thermistor support"
-	depends on OF
 	depends on IIO
 	depends on THERMAL || !THERMAL_OF
 	help