Rm debatable line about laziness causing memory overhead

VL1.tex

@@ -217,7 +217,6 @@ In haskell expressions are not evaluated until their results are actually needed
 \item infinite data structures are now possible (recursive and non-recursive)
 \item defining new control structures by just defining a function (since not everything is evaluated... who needs if-then-else anyway?)
 \item important for compositional programming and efficiency
-\item laziness causes (memory) overhead, but most of the time the benefits outweigh the costs
 \end{itemize}
 \end{frame}