Adolf Hitler’s Olympic showcase is stirring controversy nearly 90 years later. The Olympics’ official online shop has sold out of a T-shirt featuring artwork from the 1936 Berlin Games, which Hitler used to promote Nazi Germany and its ideology of Aryan supremacy. The shirt, part of the IOC’s “Heritage Collection,” reproduces the original 1936 poster by German artist Franz Würbel. The design includes a laurel-crowned male figure, the Olympic rings and Berlin’s Brandenburg Gate. German politicians and Jewish advocacy groups called for the item to be removed. “The 1936 Olympic Games were a central propaganda tool of the Nazi regime,”...