unsubscribe
Unsubscribes from safety location data by unregistering a previously registered safety location options. After unsubscribing with specific safety location options, calling function provide might still return safety location data for the options, for example if there is still such data in the cache. It is the client's responsibility to unsubscribe from safety location data for all the sets of safety location options previously registered.
Parameters
options
Safety location options that specify the rectangular areas and safety location types which are no longer of interest. If the options do not specify any safety location types, all type will be unsubscribed for the rectangular areas.
listener
Previously subscribed safety location update listener.