DeviceDeploymentsStorage: remove spurious error check
DeviceDeploymentsStorage: remove spurious error check

UpdateAll will never return ErrNotFound, regardless of SafeMode.

Issues: MEN-1143

Changelog: None

Signed-off-by: mchalczynski <3a897b56ed6fc284ae11e3e7ec3ea48d098a7178@rndity.com>

pasinskim/deployments,pasinskim/deployments,pasinskim/deployments,pasinskim/deployments