Driveway is the vaild type of object on OSM, you should respect anything mapped by other mappers. If you have no vaild reasons to remove something (e.g. duplicate;blantant graffile;features are no longer exist on reality), you shouldn't to remove anything mapped by other mappers. As obeying the principle of OSM, anyone can free to add anything on the ground while able to have verification of existence in reality, e.g. confirmed by the aerial images