United Airlines is quietly testing whether Polaris passengers even want amenity kits, and the answer could be used to justify future cuts. United Quietly Tests Polaris Amenity Kit Opt-In On Longhaul Flights From Los Angeles United Airlines has launched a new internal test on select longhaul international flights from Los Angeles (LAX) in which Polaris amenity kits will no longer be pre-placed at each seat before boarding. Instead, flight attendants will ask each customer whether they would like one. If there is time before departure, the amenity kits will be distributed on a silver tray during meal order collection. If not, they will be distributed while hot towels are prepared and meal orders are taken after takeoff.…