rafs: do not fix blob id for old bootstrap

In fact, there is no way to tell if a separate old bootstrap file
was inline to the blob, for example, for an old merged bootstrap,
we can't set the blob id it references to as the filename, otherwise
it will break blob table on loading rafs.

Signed-off-by: Yan Song <imeoer@linux.alibaba.com>

rafs/src/metadata/mod.rs

@@ -718,21 +718,11 @@ impl RafsSuper {
             // Old converters extracts bootstraps from data blobs with inlined bootstrap
             // use blob digest as the bootstrap file name. The last blob in the blob table from
             // the bootstrap has wrong blod id, so we need to fix it.
-            let mut fixed = false;
             let blobs = rs.superblock.get_blob_infos();
             for blob in blobs.iter() {
                 // Fix blob id for new images with old converters.
                 if blob.has_feature(BlobFeatures::INLINED_FS_META) {
                     blob.set_blob_id_from_meta_path(path.as_ref())?;
-                    fixed = true;
-                }
-            }
-            if !fixed && !blob_accessible && !blobs.is_empty() {
-                // Fix blob id for old images with old converters.
-                let last = blobs.len() - 1;
-                let blob = &blobs[last];
-                if !blob.has_feature(BlobFeatures::CAP_TAR_TOC) {
-                    rs.set_blob_id_from_meta_path(path.as_ref())?;
                 }
             }
         }