Ignore version not found in deleteVersions (#14093)

When deleting multiple versions it "gives" up with an errFileVersionNotFound if 
a version cannot be found. This effectively skips deleting other versions 
sent in the same request. 

This can happen on inconsistent objects. We should ignore errFileVersionNotFound 
and continue with others.

We already ignore these at the caller level, this PR is continuation of 54a9877

cmd/xl-storage.go

@@ -888,13 +888,19 @@ func (s *xlStorage) deleteVersions(ctx context.Context, volume, path string, fis
 	var (
 		dataDir     string
 		lastVersion bool
+		updated     bool
 	)
 
 	for _, fi := range fis {
 		dataDir, lastVersion, err = xlMeta.DeleteVersion(fi)
 		if err != nil {
+			if !fi.Deleted && (err == errFileNotFound || err == errFileVersionNotFound) {
+				// Ignore these since
+				continue
+			}
 			return err
 		}
+		updated = true
 		if dataDir != "" {
 			versionID := fi.VersionID
 			if versionID == "" {
@@ -918,6 +924,10 @@ func (s *xlStorage) deleteVersions(ctx context.Context, volume, path string, fis
 	}
 
 	if !lastVersion {
+		if !updated {
+			return nil
+		}
+
 		buf, err = xlMeta.AppendTo(metaDataPoolGet())
 		defer metaDataPoolPut(buf)
 		if err != nil {