By Nia Dalton The Princess of Wales is expected to remain in a private London hospital for up to two weeks after undergoing ‘planned abdominal surgery’, Kensington Palace has announced. Kate Middleton, 42, was admitted to The London Clinic yesterday for an operation on her stomach and is currently recovering from the ‘successful’ surgery. The future Queen is expected to remain in hospital for 10 to 14 days and is unlikely to resume public duties until after Easter. Her wish is that her ‘personal medical information remains private’. It is unknown exactly what procedure Kate has undergone but t…