CWG3083 Remove redundant restrictions on class and enum definitions

Fixes NB US 35-066 (C++26 CD).

Author: eisenwave

source/statements.tex

@@ -154,8 +154,6 @@
 each
 \grammarterm{decl-specifier} shall be either a \grammarterm{type-specifier}
 or \keyword{constexpr}.
-The \grammarterm{decl-specifier-seq} of a \grammarterm{for-range-declaration}
-shall not define a class or enumeration.
 
 \rSec1[stmt.label]{Label}%
 \indextext{statement!labeled}