LWG3841 <version> should not be "all freestanding"

Author: burblebee

source/support.tex

@@ -550,7 +550,6 @@
 \end{note}
 
 \begin{codeblock}
-// all freestanding
 #define @\defnlibxname{cpp_lib_addressof_constexpr}@               201603L // also in \libheader{memory}
 #define @\defnlibxname{cpp_lib_algorithm_iterator_requirements}@   202207L
   // also in \libheader{algorithm}, \libheader{numeric}, \libheader{memory}