drop 'I:send many simultaneous updates via a update forwarder' test until re-written using perl

bin/tests/system/nsupdate/tests.sh

@@ -597,6 +597,11 @@ serial=`$DIG +short yyyymmddvv.nil. soa @10.53.0.1 -p 5300 | awk '{print $3}'` |
 [ "$serial" -eq "$now" ] || ret=1
 [ $ret = 0 ] || { echo I:failed; status=1; }
 
+#
+#  Refactor to use perl to launch the parallel updates.
+#
+if false
+then
 n=`expr $n + 1`
 echo "I:send many simultaneous updates via a update forwarder ($n)"
 ret=0
@@ -622,6 +627,7 @@ dig axfr many.test @10.53.0.1 -p 5300 > dig.out.test$n
 lines=`awk '$4 == "A" { l++ } END { print l }' dig.out.test$n`
 test ${lines:-0} -eq 64 || ret=1
 [ $ret = 0 ] || { echo I:failed; status=1; }
+fi
 
 echo "I:exit status: $status"
 exit $status