Remove Karbor team meeting from eavesdrop

as announced on the openstack-discuss ML[1], Karbor is retiring
this cycle (Wallaby).

[1] http://lists.openstack.org/pipermail/openstack-discuss/2020-November/018643.html

Depends-On: https://review.opendev.org/c/openstack/project-config/+/767057
Change-Id: I32cb7ad722a1246a26bd2b3584b912f858991c39

meetings/karbor-team-meeting.yaml

@@ -1,13 +0,0 @@
-project:  Karbor Project Meeting
-meeting_id: karbor
-agenda_url: https://wiki.openstack.org/wiki/Meetings/karbor
-schedule:
-  - time:       '0900'
-    day:        Tuesday
-    irc:        openstack-meeting
-    frequency:  biweekly-odd
-    start_date: 20160621
-chair: Pengju Jiao (jiaopengju)
-description:  >
-  This weekly meeting is about discussing karbor implementation
-  progress and future feature design and requirements.