remove overzealous check during HEAD() (#19940)

due to a historic bug in CopyObject() where
an inlined object loses its metadata, the
check causes an incorrect fallback verifying
data-dir.

CopyObject() bug was fixed in ffa91f9794 however
the occurrence of this problem is historic, so
the aforementioned check is stretching too much.

Bonus: simplify fileInfoRaw() to read xl.json as well,
also recreate buckets properly.

cmd/peer-s3-server.go

@@ -123,7 +123,7 @@ func healBucketLocal(ctx context.Context, bucket string, opts madmin.HealOpts) (
 		g.Wait()
 	}
 
-	// Create the quorum lost volume only if its nor makred for delete
+	// Create the lost volume only if its not marked for delete
 	if !opts.Remove {
 		// Initialize sync waitgroup.
 		g = errgroup.WithNErrs(len(localDrives))