Remove the date parenthetical

Error²Federal courts, Illinois courts21st and 22nd editions

A public-domain citation already gives the year and names the court, so “2014 IL 115776, ¶ 15” ends there; an explanatory parenthetical is still in order.¹

1. 1Ill. S. Ct. R. 6 Commentary (May 31, 2011); M.R. No. 10343(A); R. 10.3.3 Public Domain Format; T1.3 States and the District of Columbia.
2. 2An error: the rule in note 1 allows one form, and this is not it.