src/vs/editor/common/model/textModel.ts/DecorationsTrees/delete
class DecorationsTrees:	public delete(node: IntervalNode): void {
		if (isNodeInjectedText(node)) {
			this._injectedTextDecorationsTree.delete(node);
		} else if (isNodeInOverviewRuler(node)) {
			this._decorationsTree1.delete(node);
		} else {
			this._decorationsTree0.delete(node);
		}
	}