LONDON (Reuters) -Germany’s 233,000 barrel-per-day PCK Schwedt refinery is set to reduce output as it stops using Russian oil, which it now receives via the Druzhba pipeline, the chief executive of its minority shareholder Shell said on Thursday. PCK Schwedt, majority-owned by Russia’s Rosneft, supplies Berlin and large parts of eastern Germany with gasoline, diesel and jet fuel and an alternative pipeline via the port of Rostock cannot fully replace Druzhba. Germany is in talks with Poland about the possibility of routing some supplies from the port of Gdansk to Schwedt. The European Union is…