By Anthony Boadle BRASILIA (Reuters) – Brazil’s Supreme Court late on Sunday removed the governor of Brasilia from office for 90 days due to flaws in security in the capital, after thousands of backers of far-right former president Jair Bolsonaro ransacked government buildings. Supreme Court Justice Alexandre de Moraes also ordered social media platforms Facebook, Twitter and TikTok to block coup-mongering propaganda. Brazilian authorities have begun investigating the worst attack on the country’s institutions since democracy was restored four decades ago, with President Luiz Inacio Lula da Si…