remove send-announcements-to from closed series

We no longer use the send-announcements-to field for anything.

Change-Id: I605b86261e13e13f017264992090c5f726e3e605
Signed-off-by: Doug Hellmann <doug@doughellmann.com>

deliverables/kilo/python-ceilometerclient.yaml

@@ -3,7 +3,6 @@ launchpad: python-ceilometerclient
 team: Telemetry
 type: library
 release-model: cycle-with-intermediary
-send-announcements-to: openstack-announce@lists.openstack.org
 releases:
   - version: 1.0.13
     projects: