staging:iio:imu:adis16400 remove unused headers.

These should have gone with the iio_chan_spec conversion.
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/iio/imu/adis16400_core.c

@@ -29,11 +29,6 @@
 #include "../iio.h"
 #include "../sysfs.h"
 #include "../ring_generic.h"
-#include "../accel/accel.h"
-#include "../adc/adc.h"
-#include "../gyro/gyro.h"
-#include "../magnetometer/magnet.h"
-
 #include "adis16400.h"
 
 #define DRIVER_NAME		"adis16400"