Replace all credentialStatus() with cloud_verification_status()
Where both prefs.credentialStatus and
PrefCloudStorage.cloud_verification_status are being set, remove
prefs.credentialStatus.
These replacements are valid since credentialStatus() is a simple
envelope over cloud_verification_status().
Also remove qmlPrefs::credentialStatus() from qmlPrefs (mostly to ensure no
replacements was forgotten).
Signed-off-by: Jan Iversen <jan@casacondor.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>