samples: shields: npm6001_ek: remove dead assignment
The voltage gets assigned by regulator_get_voltage, code was likely a
copy&paste from set voltage command.
@@ -191,8 +191,6 @@ static int cmd_regulator_get(const struct shell *sh, size_t argc, char **argv)
return -ENODEV;
}
- volt_uv = (int32_t)strtoul(argv[1], NULL, 10) * 1000;
-
ret = regulator_get_voltage(dev, &volt_uv);
if (ret < 0) {
shell_error(sh, "Could not get voltage (%d)", ret);
