Remove an attachment from the docs.

doc/memoize-doc.tex

@@ -3916,7 +3916,7 @@ \subsubsection{The default memoization driver}
   listing only, one file,
   listing options app={numbers=left, numberstyle=\tiny, numbersep=0.5em},
   title=The default memoization driver,
-  float,
+  float, no attachment,
 }
 
 \begin{enumerate}