This patch introduces the use of devm_iio_device_register and does away
with the unregister in the remove function. The remove function is no
longer required and is completely removed.
Signed-off-by: Himangi Saraogi <himangi774@gmail.com> Acked-by: Julia Lawall <julia.lawall@lip6.fr> Signed-off-by: Jonathan Cameron <jic23@kernel.org>