Remove apply()

Doc/lib/libfuncs.tex

@@ -1169,26 +1169,6 @@ bypass these functions without concerns about missing something important.
 
 \setindexsubitem{(non-essential built-in functions)}
 
-\begin{funcdesc}{apply}{function, args\optional{, keywords}}
-  The \var{function} argument must be a callable object (a
-  user-defined or built-in function or method, or a class object) and
-  the \var{args} argument must be a sequence.  The \var{function} is
-  called with \var{args} as the argument list; the number of arguments
-  is the length of the tuple.
-  If the optional \var{keywords} argument is present, it must be a
-  dictionary whose keys are strings.  It specifies keyword arguments
-  to be added to the end of the argument list.
-  Calling \function{apply()} is different from just calling
-  \code{\var{function}(\var{args})}, since in that case there is always
-  exactly one argument.  The use of \function{apply()} is equivalent
-  to \code{\var{function}(*\var{args}, **\var{keywords})}.
-  Use of \function{apply()} is not necessary since the ``extended call
-  syntax,'' as used in the last example, is completely equivalent.
-
-  \deprecated{2.3}{Use the extended call syntax instead, as described
-                   above.}
-\end{funcdesc}
-
 \begin{funcdesc}{buffer}{object\optional{, offset\optional{, size}}}
   The \var{object} argument must be an object that supports the buffer
   call interface (such as strings, arrays, and buffers).  A new buffer