By Crispian Balmer ROME (Reuters) – One hundred years after Benito Mussolini grabbed power in Rome, his photograph still hangs in the prime minister’s official residence, striking evidence that Italy has yet to shake off its fascist legacy. While Germany systematically scrubbed clean any symbols of Adolf Hitler’s Nazi regime after World War Two, Italians took a much less rigorous approach to removing traces of their dictator’s 21-year rule. Monuments glorifying Mussolini’s command dot Rome, emblems of his fascist party adorn pot-hole covers, and carvings of his square-jawed troops embellish pu…