I added a delete method to the vserver command. To test it, patch the script vserver with this diff.

@@ -43,6 +43,7 @@
     restart     ... restarts the specified vserver; this is the subsequent
                     execution of a synchronized \'stop\' and a \'start\'
     condrestart ... restarts the vserver when it is running already
+    delete      ... deletes the vserver
     suexec <user> <shell-command> <args*>
                 ... executes a command as the specified user in the vserver
     exec <shell-command> <args*>
@@ -96,6 +97,21 @@
     exit 0
 }

+function delete()
+{
+    if test -z \"$OPTION_SILENT\" ; then
+       read -p \"Are you sure to delete the vserver $vserver (y/N) \" deleteok
+       if [[ ${deleteok} != [Yy] ]] ; then
+           exit 2
+       fi
+    fi
+
+    isVserverRunning \"$VSERVER_DIR\" &&
+    \"${SELF[@]}\" $OPTION_SILENT --sync \"$vserver\" stop
+
+    rm -rf `readlink -f \"$VSERVER_DIR\"/vdir` \"$VSERVER_DIR\"
+}
+
 function suexec()
 {
     . $__PKGLIBDIR/vserver.suexec
@@ -203,7 +219,7 @@
        shift 2
        . $__PKGLIBDIR/vserver.$cmd
        ;;
-    (suexec|restart)
+    (suexec|restart|delete)
        shift 2
        $cmd \"$@\"
        ;;