code: public void deleteFile(JimfsPath path, DeleteMode deleteMode) throws IOException {
      store.writeLock().lock();
      try {
        DirectoryEntry entry = lookUp(path, Options.NOFOLLOW_LINKS).requireExists(path);
        delete(entry, deleteMode, path);
      } finally {
        store.writeLock().unlock();
      }
    }
docs: Deletes the file at the given absolute path.