EDINBURGH (Reuters) – Elisabeth Murdoch said on Friday she had no ambition to succeed her father Rupert as head of his News Corp global media empire, but had intervened to limit her brother's ambitions. "I really harbor absolutely no ambition for a top job (as head of News Corp)," she told a question and answer session at the annual Edinburgh Television Festival. She was speaking the day after she used a keynote speech to attack James, previously seen as the most likely Murdoch to take over as head of News Corp, and to praise the values of her father. …