Bossa Bistro & Lounge The Going Out Gurus are reporting that two Adams Morgan bars, Bossa Bistro & Lounge and Bobby Lew’s Saloon, have had their liquor licenses revoked by the D.C. Alcohol Control Board for low food sales. Both bars had restaurant-class licenses, which require 45 percent of gross receipts to be derived from food sales. Neither establishment has ever been in trouble regarding their liquor licenses before, but it’s unclear what will…