[Bug #857821] Remove mention of deprecated string.{atol,atof} functions. (Patch from Gerrit Holl)

Doc/lib/libfuncs.tex

@@ -427,8 +427,7 @@ class C:
 \begin{funcdesc}{float}{\optional{x}}
   Convert a string or a number to floating point.  If the argument is a
   string, it must contain a possibly signed decimal or floating point
-  number, possibly embedded in whitespace; this behaves identical to
-  \code{string.atof(\var{x})}.  Otherwise, the argument may be a plain
+  number, possibly embedded in whitespace. Otherwise, the argument may be a plain
   or long integer or a floating point number, and a floating point
   number with the same value (within Python's floating point
   precision) is returned.  If no argument is given, returns \code{0.0}.
@@ -612,8 +611,7 @@ class C:
 \begin{funcdesc}{long}{\optional{x\optional{, radix}}}
   Convert a string or number to a long integer.  If the argument is a
   string, it must contain a possibly signed number of
-  arbitrary size, possibly embedded in whitespace;
-  this behaves identical to \code{string.atol(\var{x})}.  The
+  arbitrary size, possibly embedded in whitespace. The
   \var{radix} argument is interpreted in the same way as for
   \function{int()}, and may only be given when \var{x} is a string.
   Otherwise, the argument may be a plain or