staging: iio: adis16209: 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: simran singhal <singhalsimran0@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

drivers/staging/iio/accel/adis16209.c

@@ -285,8 +285,8 @@ static const struct iio_chan_spec adis16209_channels[] = {
 };
 
 static const struct iio_info adis16209_info = {
-	.read_raw = &adis16209_read_raw,
-	.write_raw = &adis16209_write_raw,
+	.read_raw = adis16209_read_raw,
+	.write_raw = adis16209_write_raw,
 	.update_scan_mode = adis_update_scan_mode,
 	.driver_module = THIS_MODULE,
 };