iio: magnetometer: tmag5273: remove unused IIO_CHAN_INFO_PROCESSED handling

The tmag5273 driver does not advertise IIO_CHAN_INFO_PROCESSED in its
info_mask_* fields, so the corresponding case in read_raw()/write_raw()
is never used.
Drop the dead code to reduce unnecessary branches and improve clarity.

Signed-off-by: Dixit Parmar <dixitparmar19@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

Author: dixitparmar19

drivers/iio/magnetometer/tmag5273.c

@@ -287,7 +287,6 @@ static int tmag5273_read_raw(struct iio_dev *indio_dev,
 	int ret;
 
 	switch (mask) {
-	case IIO_CHAN_INFO_PROCESSED:
 	case IIO_CHAN_INFO_RAW:
 		ret = pm_runtime_resume_and_get(data->dev);
 		if (ret < 0)