feat(thumb): delete generated thumb file

fix(s3): return empty list of file failed to be deleted

pkg/filesystem/driver/onedrive/handler.go

@@ -145,6 +145,7 @@ func (handler Driver) Thumb(ctx context.Context, file *model.File) (*response.Co
 		return nil, errors.New("failed to get thumbnail size")
 	}
 
+	return nil, driver.ErrorThumbNotSupported
 	res, err := handler.Client.GetThumbURL(ctx, file.SourceName, thumbSize[0], thumbSize[1])
 	if err != nil {
 		var apiErr *RespError

pkg/filesystem/driver/s3/handler.go

@@ -257,7 +257,7 @@ func (handler *Driver) Delete(ctx context.Context, files []string) ([]string, er
 	for _, deleteRes := range res.Deleted {
 		deleted = append(deleted, *deleteRes.Key)
 	}
-	failed = util.SliceDifference(failed, deleted)
+	failed = util.SliceDifference(files, deleted)
 
 	return failed, nil