removeInstance method
Remove the instance with instancedId
as key.
Implementation
void removeInstance(String instanceId) {
final Object? instance = getInstance(instanceId);
if (instance != null) _instanceIds[instance] = null;
_strongReferences.remove(instanceId);
_temporaryStrongReferences.remove(instanceId);
_weakReferences.remove(instanceId);
_weakReferenceCallbacks.remove(instanceId);
}