By Uday Sampath Kumar (Reuters) -McDonald’s Corp on Monday became one of the biggest global brands to exit Russia, laying out plans to sell all its restaurants after operating in the country for more than 30 years following the invasion of Ukraine. The world’s largest burger chain, which owns about 84% of its nearly 850 restaurants in Russia, will take a related non-cash charge of up to $1.4 billion following its sale. McDonald’s had in March decided to close its restaurants in the country, including the iconic Pushkin Square location in central Moscow – a symbol of flourishing American capita…