on Detached
Called when a MapboxCarMapSurface has been detached from this observer. Some examples that can cause this to detach are:
MapboxCarMap lifecycle is destroyed
This observer has been unregistered with MapboxCarMap.unregisterObserver
You can assume that there was a corresponding call to onAttached with the same MapboxCarMapObserver instance.
Parameters
mapboxCarMapSurface
loaded and ready car map surface