drivers: sensor: voltage_divider: revert patch

A patch was added to the voltage divider to handle an erroneous
negative voltage reading for the nrfx_saadc which could return
negative voltages even though the ADC mode was single ended.

This has now been patched in the ADC driver.

(cherry picked from commit ee69e9f)

Original-Signed-off-by: Bjarki Arge Andreasen <bjarki.andreasen@nordicsemi.no>
GitOrigin-RevId: ee69e9f
Change-Id: I6b86ff7b5edba0c9ff462c31556a11eb0a94774b
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/zephyr/+/5705490
Reviewed-by: Keith Short <keithshort@chromium.org>
Tested-by: ChromeOS Prod (Robot) <chromeos-ci-prod@chromeos-bot.iam.gserviceaccount.com>
Commit-Queue: Keith Short <keithshort@chromium.org>
Tested-by: Keith Short <keithshort@chromium.org>

drivers/sensor/voltage_divider/voltage.c

@@ -59,9 +59,6 @@ static int get(const struct device *dev, enum sensor_channel chan, struct sensor
 
 	if (config->voltage.port.channel_cfg.differential) {
 		raw_val = (int16_t)data->raw;
-	} else if (config->voltage.port.resolution < 16) {
-		/* Can be removed when issue #71119 is resolved */
-		raw_val = (int16_t)data->raw;
 	} else {
 		raw_val = data->raw;
 	}