src/vs/editor/common/viewModelEventDispatcher.ts/ViewModelEventDispatcher/removeViewEventHandler
class ViewModelEventDispatcher:	public removeViewEventHandler(eventHandler: ViewEventHandler): void {
		for (let i = 0; i < this._eventHandlers.length; i++) {
			if (this._eventHandlers[i] === eventHandler) {
				this._eventHandlers.splice(i, 1);
				break;
			}
		}
	}