By Joanna Plucinska and Tim Hepher (Reuters) -Air France-KLM raised a medium-term profitability goal and sped up transformation efforts, promising investors a 2-billion-euro ($2.2 billion) improvement in core profit within five years and sending its shares soaring on Thursday. The Franco-Dutch airline group, which faces intense competition in core European markets, also laid out plans to eliminate losses at Paris’ second airport by refocusing Orly operations around the French part of low-cost unit Transavia. Shares in the group rose 9% after Chief Executive Ben Smith presented targets to inves…