A federal judge has given the cold shoulder to a lawsuit accusing Starbucks Corp. of ripping off its customers by putting ice in its cold drinks.In a written opinion last week, U.S. District Judge Thomas M. Durkin threw out a class-action suit accusing the Seattle-based coffee shop chain of violating various laws against consumer fraud and deceptive business practices.Durkin rejected the notion that the typical Starbucks customer is unaware there is ice in an iced coffee or iced tea and that this ice is included when …