Revert "Include SuccessorModTime for FileInfo quorum (#17732)" (#17860)

This reverts commit bf3901342c.

This is to fix a regression caused when there are inconsistent
versions, but one version is in quorum. SuccessorModTime issue
must be fixed differently.

cmd/erasure-metadata.go

@@ -342,7 +342,6 @@ func findFileInfoInQuorum(ctx context.Context, metaArr []FileInfo, modTime time.
 		etagOnly := modTime.Equal(timeSentinel) && (etag != "" && etag == meta.Metadata["etag"])
 		mtimeValid := meta.ModTime.Equal(modTime)
 		if mtimeValid || etagOnly {
-			fmt.Fprint(h, meta.SuccessorModTime.Format(http.TimeFormat))
 			fmt.Fprintf(h, "%v", meta.XLV1)
 			if !etagOnly {
 				// Verify dataDir is same only when mtime is valid and etag is not considered.