Four years after Clark County building inspectors issued corrective-action and stop-work orders at the Harmon on the Las Vegas Strip, the hotel’s owner is back in court seeking permission to demolish it. After a four-month recess, testimony resumed Monday in Clark County District Court in a hearing on whether CityCenter can demolish the hotel prior to a trial planned for next year in a lawsuit over Harmon design and construction defects and unpaid Harmon construction invoices.