README: remove references to grub.enbug.org

README

@@ -12,11 +12,9 @@ The URL is <http://www.gnu.org/software/grub/grub.html>.
 
 More extensive documentation is available in the Info manual,
 accessible using 'info grub' after building and installing GRUB 2.
-Please look at the GRUB Wiki <http://grub.enbug.org> for testing
-procedures.
 
 There are a number of important user-visible differences from the
 first version of GRUB, now known as GRUB Legacy. For a summary, please
 see:
 
-  info grub Introduction 'Changes from GRUB Legacy'
+  info grub Introduction 'Changes from GRUB Legacy'