Remove old statement that is now superfluous

chapters/arrays.tex

@@ -202,10 +202,6 @@ \section{Built-in Array Functions}\doublelabel{built-in-array-functions}
 can change matrix-equations in subtle ways (e.g.\ changing inner products to matrix multiplication).
 \end{nonnormative}
 
-\begin{nonnormative}
-Below, \lstinline!promote! is only used for constant $n$ that can be evaluated during translation.
-\end{nonnormative}
-
 \begin{nonnormative}
 Some examples of using the functions defined in the following
 \autoref{array-dimension-and-size-functions} to \autoref{matrix-and-vector-algebra-functions}: