staging:iio:cdc: drop assign iio_info.driver_module

The equivalent of this is now done via macro magic when
the relevant register call is made.  The actual structure
elements will shortly go away.
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>

drivers/staging/iio/cdc/ad7150.c

@@ -569,7 +569,6 @@ static const struct attribute_group ad7150_event_attribute_group = {
 
 static const struct iio_info ad7150_info = {
 	.event_attrs = &ad7150_event_attribute_group,
-	.driver_module = THIS_MODULE,
 	.read_raw = &ad7150_read_raw,
 	.read_event_config = &ad7150_read_event_config,
 	.write_event_config = &ad7150_write_event_config,

drivers/staging/iio/cdc/ad7152.c

@@ -441,7 +441,6 @@ static const struct iio_info ad7152_info = {
 	.read_raw = ad7152_read_raw,
 	.write_raw = ad7152_write_raw,
 	.write_raw_get_fmt = ad7152_write_raw_get_fmt,
-	.driver_module = THIS_MODULE,
 };
 
 static const struct iio_chan_spec ad7152_channels[] = {

drivers/staging/iio/cdc/ad7746.c

@@ -667,7 +667,6 @@ static const struct iio_info ad7746_info = {
 	.attrs = &ad7746_attribute_group,
 	.read_raw = ad7746_read_raw,
 	.write_raw = ad7746_write_raw,
-	.driver_module = THIS_MODULE,
 };
 
 /*