RIO DE JANEIRO — United Airlines CEO Scott Kirby said he doesn't expect more airline consolidation in the U.S. and he's not interested in pursuing a merger for his airline after American Airlines rejected the idea of a combination earlier this year. "United's not going to do a deal just to do a deal," Kirby told reporters Sunday on the sidelines at the International Air Transport Association's annual meeting. When asked about the wave of consolidation that has brought together Allegiant and Sun