Removed obsolete discussion on _xdr helper module.
diff --git a/Doc/libxdrlib.tex b/Doc/libxdrlib.tex
index 0de5695..a219f40 100644
--- a/Doc/libxdrlib.tex
+++ b/Doc/libxdrlib.tex
@@ -9,9 +9,7 @@
The \code{xdrlib} module supports the External Data Representation
Standard as described in RFC 1014, written by Sun Microsystems,
Inc. June 1987. It supports most of the data types described in the
-RFC, although some, most notably \code{float} and \code{double} are
-only supported on those operating systems that provide an XDR
-library.
+RFC.
The \code{xdrlib} module defines two classes, one for packing
variables into XDR representation, and another for unpacking from XDR
@@ -230,21 +228,3 @@
except xdrlib.ConversionError, instance:
print 'packing the double failed:', instance.msg
\end{verbatim}\ecode
-%
-\subsection{Supporting Floating Point Data}
-
-Packing and unpacking floating point data,
-i.e. \code{Packer.pack_float}, \code{Packer.pack_double},
-\code{Unpacker.unpack_float}, and \code{Unpacker.unpack_double}, are
-only supported with the helper built-in \code{_xdr} module, which
-relies on your operating system having the appropriate XDR library
-routines.
-
-If you have built the Python interpeter with the \code{_xdr} module,
-or have built the \code{_xdr} module as a shared library,
-\code{xdrlib} will use these to pack and unpack floating point
-numbers. Otherwise, using these routines will raise a
-\code{ConversionError} exception.
-
-See the Python installation instructions for details on building the
-\code{_xdr} module.