OMASA remove object editing traces

Remove

uint8_t editing_ism_enabled; /* Todo Nokia: Temporary, used until proper ISM control available / int16_t index_of_edited_ism; / Todo Nokia: Temporary, used until proper ISM control available / int16_t azimuth_edited; / Todo Nokia: Temporary, used until proper ISM control available / int16_t elevation_edited; / Todo Nokia: Temporary, used until proper ISM control available */

and related unused code.