Fix a possible infinite loop in overlay.Driver.recreateSymlinks
Fix a possible infinite loop in overlay.Driver.recreateSymlinks

If removing a broken link failed for some unimaginable reason,
don't keep looping and trying to remove it.

Signed-off-by: Miloslav Trmač <9c008e38982a5397deb855345fb164f0558459ae@redhat.com>

containers/storage,containers/storage,containers/storage