Removes this Layer from the Display List it is currently on.
A Layer can only exist on one Display List at any given time, but may move freely removed and added back at a later stage.
You can query which list it is on by looking at the Phaser.GameObjects.GameObject#displayList property.
If a Layer isn't on any Display List, it will not be rendered. If you just wish to temporarily
disable it from rendering, consider using the setVisible method, instead.
This Layer.