[func.wrap.ref.class] Remove redundant declaration for function_ref as per #6273.

burblebee · burblebee · commit cd5add3f20e3 · 2023-06-27T20:16:15.000-07:00
diff --git a/source/utilities.tex b/source/utilities.tex
@@ -13463,8 +13463,6 @@
 \indexlibraryglobal{function_ref}%
 \begin{codeblock}
 namespace std {
-  template<class... S> class function_ref;                      // \notdef
-
   template<class R, class... ArgTypes>
   class function_ref<R(ArgTypes...) @\cv{}@ noexcept(@\placeholder{noex}@)> {
   public:
