LONDON (Reuters) -British lawmaker Conor Burns was sacked as a junior trade minister on Friday and suspended from the parliamentary Conservative Party following a “complaint of serious misconduct” at its annual conference this week. Prime Minister Liz Truss sacked Burns from a role in the Department for International Trade, a role he had held for one month, her office said. “Following a complaint of serious misconduct, the Prime Minister has asked Conor Burns MP to leave the government with immediate effect,” a spokesperson for Truss’ Downing Street office said. “The prime minister took direct…