diff -r 826bdac3525a -r 2c43106bef85 lemon/maps.h
--- a/lemon/maps.h	Thu May 26 15:33:16 2005 +0000
+++ b/lemon/maps.h	Thu May 26 16:32:26 2005 +0000
@@ -525,8 +525,6 @@
     typedef typename M2::Key Key;
     typedef typename M1::Value Value;
 
-    typedef True NeedCopy;
-
     ///Constructor
 
     ///\e