This ports the following barebox commit:

| commit e197305
| Author: Philipp Zabel <p.zabel@pengutronix.de>
| Date:   Tue Jul 18 15:15:34 2017 +0200
|
|     state: backend_storage: remove unreachable error message
|
|     This looks like a leftover.
|
|     Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
|     Signed-off-by: Lucas Stach <l.stach@pengutronix.de>

Signed-off-by: Ulrich Ölmann <u.oelmann@pengutronix.de>
Signed-off-by: Roland Hieber <rhi@pengutronix.de>