LIV—a wildly expensive golf league that nobody asked for or watched—has finally gone kaput. What did we learn? Like I yell to my children at the water park arcade, there is no such thing as “unlimited funding.” From its inception, LIV’s power was its money, its ability to thunderclap generational wealth upon aging Phil Mickelson and other curious players to get them to join a noisy golf start-up named for its three-day, 54-hole format. LIV engineer Greg Norman liked to puff about disrupting a staid sport, but the mode of disruption was cash, Vuitton trunks of it, from the Saudi…