ST. PAUL, MINN. — Always the third bridesmaid, never the bride for Michigan hockey. Boston College hammered the Wolverines 4-0 in the Frozen Four to send the Wolverines home empty handed once again. The Wolverines came out strong in the first period, carrying play in the early going. They hit a post within the first few minutes and had the better chances, but the Eagles scored first. A risky pinch led to a 2-on-1 the other way, and Will Smith buried a shot past Michigan goaltender Jake Barczewski only 1:20 in to make it 1-0 on B.C.’s first shot. That would be the Eagles’ only shot, in fact, un…