By Charlie Conchie Vodafone has struck a deal to offload its Italian arm for €8bn (£6.3bn) and announced plans for €4bn (£3.4bn) share buyback today in the “third and final step” of efforts to simplify its sprawling European business. In a statement this morning, the FTSE 100 telecoms giant said it would sell its Italian business to Swisscom in the latest of a number of bumper deals struck by new chief Margherita Della Valle. Della Valle has been on a push to boost profitability and Vodafone’s flagging share price which has struggled in recent years. In a statement today, she said the Italian …