Remove unused Ceilometer meeting

The Ceilometer/Telemetry team meeting hasn't happened since
Jul 14, and it is blocking a heavily-demanded time slot.

Change-Id: I014bf31602fe76897a55b402aa6b358f8da21b62

meetings/ceilometer-team-meeting.yaml

@@ -1,14 +0,0 @@
-project:  Ceilometer Team Meeting
-meeting_id: ceilometer
-agenda_url: https://wiki.openstack.org/wiki/Meetings/Ceilometer
-schedule:
-  - time:       '1500'
-    day:        Thursday
-    irc:        openstack-meeting
-    frequency:  weekly
-    start_date: 20160107
-chair:  Gordon Chung (gordc)
-description:  >
-  Everyone is welcome. The blueprints that are used as a basis for the
-  ceilometer project can be found at
-  https://blueprints.launchpad.net/ceilometer