url.texi doc fix for bug#6038.

* doc/misc/url.texi (Dealing with HTTP documents): Remove reference to
function url-decode-text-part; never seems to have existed in any version.

doc/misc/ChangeLog

+2011-03-03  Glenn Morris  <rgm@gnu.org>
+
+	* url.texi (Dealing with HTTP documents): Remove reference to
+	function url-decode-text-part; never seems to have existed.  (Bug#6038)
+
 2011-03-02  Glenn Morris  <rgm@gnu.org>
 
 	* dired-x.texi (Multiple Dired Directories): Remove mentions

doc/misc/url.texi

@@ -383,20 +383,7 @@ Currently this is just the raw header contents.
 HTTP URLs are retrieved into a buffer containing the HTTP headers
 followed by the body.  Since the headers are quasi-MIME, they may be
 processed using the MIME library.  @xref{Top,, Emacs MIME,
-emacs-mime, The Emacs MIME Manual}.  The URL package provides a
-function to do this in general:
-
-@defun url-decode-text-part handle &optional coding
-This function decodes charset-encoded text in the current buffer.  In
-Emacs, the buffer is expected to be unibyte initially and is set to
-multibyte after decoding.
-HANDLE is the MIME handle of the original part.  CODING is an explicit
-coding to use, overriding what the MIME headers specify.
-The coding system used for the decoding is returned.
-
-Note that this function doesn't deal with @samp{http-equiv} charset
-specifications in HTML @samp{<meta>} elements.
-@end defun
+emacs-mime, The Emacs MIME Manual}.
 
 @node file/ftp
 @section file and ftp