iio: pressure: hp03: update device probe to register with devm functions

Update device probe to register resources with device-managed functions.
Further, get rid of device-specific remove callback which is no longer
needed.

Signed-off-by: Théo Borém Fabris <theobf@usp.br>
Link: https://lore.kernel.org/r/20210809203014.10955-1-theobf@usp.br


Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>