Remove the grouping commas

Error²Federal courts, Illinois courts21st and 22nd editions

A database locator, a U.S. Code or C.F.R. section, and a Statutes at Large page are written closed up, without commas, however many digits they run to.¹

1. 1R. 6.2(a)(vii) Numerals.
2. 2An error: the rule in note 1 allows one form, and this is not it.