fix patch 905's header

[Julien Cristau <julien.cristau@ens-lyon.fr>]

Hi,

part of the svn Id property from the xfree86 repo is left in patch
905_debian_xdm.diff.
This patch removes two spurious lines.

Cheers,
Julien

Index: debian/patches/905_debian_xdm.diff
===================================================================
--- debian/patches/905_debian_xdm.diff  (revision 318)
+++ debian/patches/905_debian_xdm.diff  (working copy)
@@ -1,7 +1,5 @@
 $Id$
 
-d: 905_debian_xdm.diff 1150 2004-03-16 07:30:32Z branden $
-
 * Imakefile:
     Use different paths for the chooser, auth directory, and greeter
     library.  This is just an effort to move in the direction of the