Removed last XXX comment; no further action needed on this one.

Doc/lib/libturtle.tex

@@ -117,10 +117,9 @@ Go to co-ordinates (\var{x}, \var{y}) (specified as a tuple instead of
 individually).
 \end{funcdesc}
 
-This module also does a documented \code{from math import *}, so see
-the documentation for the \refmodule{math} module for additional
-constants and functions useful for turtle graphics.
-% XXX Should we mention this? If so, a \seealso is also in place...
+This module also does \code{from math import *}, so see the
+documentation for the \refmodule{math} module for additional constants
+and functions useful for turtle graphics.
 
 \begin{funcdesc}{demo}{}
 Exercise the module a bit.