SPRINGFIELD — A man who said he paid an unnecessary tax when purchasing sparkling water at a Walgreens drug store does not have the basis of a claim for statutory consumer fraud, the state’s top court said.In a 6-1 decision released Thursday, the Illinois Supreme Court affirmed a circuit court’s judgment that the case against Walgreens Boots Alliance, should be dismissed.Justice P. Scott Neville Jr. delivered the majority opinion. All justices concurred with the judgment except Justice Thomas L. Kilbride …