Delete irrelevant copy-paste from previous section

Author: YehezkelShB

source/expressions.tex

@@ -4609,9 +4609,6 @@
 \begin{note}
 A \grammarterm{noexcept-expression}
 is an integral constant expression\iref{expr.const}.
-The type \tcode{std::size_t} is defined in the standard header
-\indexhdr{cstddef}%
-\tcode{<cstddef>}~(\ref{cstddef.syn}, \ref{support.types.layout}).
 \end{note}
 
 \pnum