By Gabriel Araujo and Luciana Magalhaes SAO PAULO (Reuters) -Airline group Abra has decided to terminate talks on a potential merger between Brazilian carrier Gol, which it controls, and rival Azul, a securities filing showed late on Thursday. The move ends prospects for the creation of a dominant airline in Latin America's largest economy, which would have held roughly 60% of the domestic market, surpassing the local unit of Chile-based LATAM Airlines. Abra Group - the majority investor in Gol and Colo ...