By Ayeesha Walsh Cara Delevingne has begun demolition of the remains of her mansion in Los Angeles after a devastating fire. The supermodel was left devastated when her home was destroyed by a fire back in March that saw the £5.5million ($7million) Los Angeles property destroyed. At the time Cara was in London to make her West End debut as Sally Bowles in the hit musical Cabaret. She was distraught when she believed her pet cats had perished in the blaze. One person was inside the property and was treated for injuries as almost 100 firefighters worked to tackle the major blaze in Studio City, …