Remove downloads/images alias since it moved from /z into the testbed

www tree.

apache/httpd.conf.in

@@ -665,18 +665,6 @@ ServerSignature On
         Allow from all
     </Directory>
 
-    #
-    # Widearea/software distributions.
-    #
-    Alias /images/ "/z/testbed/distributions/"
-    Alias /downloads/ "/z/testbed/downloads/"
-    <Directory /z/testbed/distributions>
-        Options Indexes
-        AllowOverride All
-        Order allow,deny
-        Allow from all
-    </Directory>
-
     #
     # ScriptAlias: This controls which directories contain server scripts.
     # ScriptAliases are essentially the same as Aliases, except that