By Asif Shahzad and Gibran Naiyyar Peshimam ISLAMABAD (Reuters) -Pakistan Prime Minister Imran Khan said on Friday he would not recognise an opposition government if it succeeded in an attempt to oust him, the latest twist in a political crisis engulfing the nuclear-armed nation. The country’s parliament will convene on Saturday to vote on Khan as prime minister, an official notice said on Friday, potentially cutting short his term as leader. The country’s top court ruled late on Thursday that Khan must face the no-confidence vote, which he is widely expected to lose, meaning he would be ouste…