In #49621 and like, hacks were added to xinetd (build two versions), because
xinetd offered only on/off compile-time IPv6 support.

In 2.3.7 it has been improved, and can be controlled by "flags = IPv6" and the like.

Therefore,

 1) now identical xinetd-ipv6 binary can be removed and the build process
cleaned up a bit
 2) init.d/xinetd can be cleaned up a bit, like:

diff -uN xinetd~ xinetd
--- xinetd~	Wed Dec 18 18:34:41 2002
+++ xinetd	Wed Dec 18 18:34:41 2002
@@ -39,11 +39,7 @@
 
 RETVAL=0
 
-if [ "$NETWORKING_IPV6" = "yes" ] && [ -x /usr/sbin/xinetd-ipv6 ]; then
-    prog="xinetd-ipv6"
-else
-    prog="xinetd"
-fi
+prog="xinetd"
 
 start(){
     echo -n $"Starting $prog: "