iio: adc: ad7380: remove unused oversampling_ratio getter

Remove a call to ad7380_get_osr() in ad7380_init_offload_msg. The
returned value is never used.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://patch.msgid.link/20250624-iio-adc-ad7380-remove-unused-oversampling_ratio-getter-v1-1-26cbee356860@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

Author: dlech

drivers/iio/adc/ad7380.c

@@ -1165,7 +1165,6 @@ static int ad7380_init_offload_msg(struct ad7380_state *st,
 	struct spi_transfer *xfer = &st->offload_xfer;
 	struct device *dev = &st->spi->dev;
 	const struct iio_scan_type *scan_type;
-	int oversampling_ratio;
 	int ret;
 
 	scan_type = iio_get_current_scan_type(indio_dev,
@@ -1195,10 +1194,6 @@ static int ad7380_init_offload_msg(struct ad7380_state *st,
 		}
 	}
 
-	ret = ad7380_get_osr(st, &oversampling_ratio);
-	if (ret)
-		return ret;
-
 	xfer->bits_per_word = scan_type->realbits;
 	xfer->offload_flags = SPI_OFFLOAD_XFER_RX_STREAM;
 	xfer->len = AD7380_SPI_BYTES(scan_type) * st->chip_info->num_simult_channels;