Fix bug#6173: "(require 'dirtrack) erroring"

* dirtrack.el (dirtrackp): Remove defcustom; don't make automatically
  buffer-local (it's an obsolete alias for `dirtrack-mode'.)

lisp/ChangeLog

+2010-05-11  Juanma Barranquero  <lekktu@gmail.com>
+
+	* dirtrack.el (dirtrackp): Remove defcustom; don't make automatically
+	buffer-local (it's an obsolete alias for `dirtrack-mode') (bug#6173).
+
 2010-05-11  Juri Linkov  <juri@jurta.org>
 
 	* scroll-all.el (scroll-all-check-to-scroll):

lisp/dirtrack.el

@@ -143,13 +143,6 @@ be on a single line."
   :group 'dirtrack
   :type  'string)
 
-(defcustom dirtrackp t
-  "If non-nil, directory tracking via `dirtrack' is enabled."
-  :group 'dirtrack
-  :type  'boolean)
-
-(make-variable-buffer-local 'dirtrackp)
-
 (defcustom dirtrack-directory-function
   (if (memq system-type (list 'ms-dos 'windows-nt 'cygwin))
       'dirtrack-windows-directory-function