public override void FeatureDeactivating(SPFeatureReceiverProperties properties)
{
// N.B. a further (optional) enhancement would be delete provisioned files here..
SPWeb parentWeb = (SPWeb)properties.Feature.Parent;
SPList accordionList = parentWeb.Lists.TryGetList("Accordion list");
if (accordionList != null)
{
parentWeb.Lists.Delete(accordionList.ID);
}
parentWeb.AlternateCssUrl = string.Empty;
parentWeb.Update();
}