Encore\Admin\Form::deleteFilesAndImages PHP Method

    protected function deleteFilesAndImages($id)
    {
        $data = $this->model->with($this->getRelations())->findOrFail($id)->toArray();
        $this->builder->fields()->filter(function ($field) {
            return $field instanceof Field\File;
        })->each(function (File $file) use($data) {
            $file->setOriginal($data);
            $file->destroy();
        });
    }