(Reuters) -Russia’s state-owned oil company Rosneft said on Friday that former German chancellor Gerhard Schroeder and German businessman Matthias Warnig were stepping down from its board of directors. The European Parliament had urged on Thursday that Schroeder, 78, be blacklisted unless he quit the board of Rosneft, a move also meant to dissuade him from taking a top job at the Russian gas giant Gazprom for which he has been nominated. Germany closed Schroeder’s taxpayer-funded office on Wednesday amid public outrage over his continued involvement in the Russian energy industry despite Russi…