deRegisterTileOverlay method
Implementation
Future<void> deRegisterTileOverlay(TileOverlayId tileOverlayId) async {
await _mapBloc.isMapReady.future;
tileOverlays.removeWhere(
(tileOverlay) => tileOverlay.tileOverlayId == tileOverlayId,
);
_updateOverlays();
}