By Giuseppe Fonte, Angelo Amante and Gavin Jones ROME (Reuters) – Italy on Thursday annulled the sale of a military drones company to Chinese investors, three government officials told Reuters, the latest in a series of moves by Rome to curb Beijing’s forays into the euro zone’s third-largest economy. The government opened an investigation last year into the 2018 sale to the Chinese players of a 75% stake in Alpi Aviation, based in northern Italy. Rome decided to annul the deal after the probe concluded that those involved should have informed the government about the transaction under Italy’s…