Boris Johnson on Wednesday refused to quit as Britain’s prime minister, despite calls from senior ministerial colleagues to go after dozens of resignations from his scandal-hit government. A cabinet delegation had awaited his return to Downing Street from a lengthy grilling by a parliamentary committee to tell him his time was up. It was said to include hard-line interior minister Priti Patel and Nadhim Zahawi, who has barely been 24 hours in his new job of finance minister. Britain’s Boris Johnson vowed to fight on against a chorus of calls for him to resign as prime minister https://t.co/NE0…