RemoveFromManagers removes all contained tiles from any managers and other PositionedObjectLists that hold the tiles. Specifically calling RemoveFromManagers will:
Remove all shapes from the ShapeManager for every-frame management
Remove all shapes from the ShapeManager for rendering
Clear the TileShapeCollection
Remove shapes in the TileShapeCollection from any other PositionedObjectList containing these shapes, including parent/child relationships
The following code will remove the calling TileShapeCollection from all managers and will clear it