Brian Cox warned ‘Succession’ creator Jesse Armstrong to “keep it royalist” after the writer made a dig at King Charles during the Emmy awards. The actor spoke up after Jesse, 51, made a joke about it being a big week for “successions” in Britain while picking up the award for best drama series. He referred to King Charles automatically taking the throne following the death of Queen Elizabeth – and said there was a “bit more voting” involved in him getting a gong for ‘Succession’. Jesse said: “Big week for ‘Succession’. New king in the UK this week for us. Evidently a little more voting involv…