Unlink file an its subversions from FS.
FilesCollection#unlinkAsync(fileRef: FileObj, version?: string): Promise<FilesCollection>Warning
This is low-level method. You shouldn't use it, unless you know what you're doing.
fileRef{object} - FullfileRefobject, returned from(await FilesCollection.findOneAsync()).get()version{string} - [Optional] If specified, only subversion will be unlinked- Returns {promise} - Current FilesCollection instance
import { FilesCollection } from 'meteor/ostrio:files';
const imagesCollection = new FilesCollection({collectionName: 'images'});
await imagesCollection.unlinkAsync(await Images.collection.findOneAsync({}));
// Unlink a version of the file:
await imagesCollection.unlinkAsync(await Images.collection.findOneAsync({}), 'thumbnail');