staging: iio: cdc: ad7746: Remove exceptional & on function name

Remove & from function pointers to conform to the style found elsewhere
in the file.  Done using the following semantic patch

// <smpl>
@r@
identifier f;
@@

f(...) { ... }
@@
identifier r.f;
@@

- &f
+ f
// </smpl>
Signed-off-by: Nsimran singhal <singhalsimran0@gmail.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

drivers/staging/iio/cdc/ad7746.c

@@ -664,8 +664,8 @@ static int ad7746_read_raw(struct iio_dev *indio_dev,
 
 static const struct iio_info ad7746_info = {
 	.attrs = &ad7746_attribute_group,
-	.read_raw = &ad7746_read_raw,
-	.write_raw = &ad7746_write_raw,
+	.read_raw = ad7746_read_raw,
+	.write_raw = ad7746_write_raw,
 	.driver_module = THIS_MODULE,
 };