mobile: only set old credential status in one place

The old credential status should only be set when changing the
actual credential status using the setCredentialStatus function.
Setting it here is just wrong. It sets the old status to the
current, and than adds the current to the prefences,
obviously, resulting in old = current, which can not be right
and results in a wrong flow of control in the credential state
processing.

Signed-off-by: Jan Mulder <jlmulder@xs4all.nl>

mobile-widgets/qmlmanager.cpp

@@ -334,7 +334,6 @@ void QMLManager::saveCloudCredentials()
 			return;
 		}
 	}
-	setOldStatus(credentialStatus());
 	s.beginGroup("CloudStorage");
 	s.setValue("email", cloudUser);
 	s.setValue("password", cloudPwd);