Staging: The header linux/module.h is included twice in drivers/staging/iio/dac/ad5686.c

Remove the unneeded duplicate.
Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

drivers/staging/iio/dac/ad5686.c

@@ -15,7 +15,6 @@
 #include <linux/slab.h>
 #include <linux/sysfs.h>
 #include <linux/regulator/consumer.h>
-#include <linux/module.h>
 
 #include "../iio.h"
 #include "../sysfs.h"