Update Horizon Meeting times

Regretfully, the 800UTC meeting slot has dwindled in attendance to the
point that it is normally empty or has at most 2 attendees.
We have decided to combine the Drivers and Team meeting into a single
weekly meeting at 2000UTC.

References for community decision
---------------------------------

Email:
- http://lists.openstack.org/pipermail/openstack-dev/2016-June/098515.html

Meetings:
- http://eavesdrop.openstack.org/meetings/horizon/2016/horizon.2016-06-29-08.00.log.html
- http://eavesdrop.openstack.org/meetings/horizondrivers/2016/horizondrivers.2016-06-29-20.00.log.html
- http://eavesdrop.openstack.org/meetings/horizondrivers/2016/horizondrivers.2016-07-06-08.00.html

Change-Id: I61e934ca3909778980a4306a820b43c1b24e7e1d

meetings/horizon-drivers-meeting.yaml

@@ -1,19 +0,0 @@
-project: Horizon Drivers Meeting
-meeting_id: horizondrivers
-agenda_url: https://wiki.openstack.org/wiki/Meetings/HorizonDrivers
-schedule:
-  - time:       '2000'
-    day:        Wednesday
-    irc:        openstack-meeting-3
-    frequency:  biweekly-even
-    start_date: 20160113
-  - time:       '800'
-    day:        Wednesday
-    irc:        openstack-meeting-3
-    frequency:  biweekly-odd
-    start_date: 20160106
-chair:  Rob Cresswell (robcresswell)
-description:  >
-  The OpenStack Horizon Drivers Team holds public meetings on IRC to review
-  blueprints, bugs and priorities. This meeting is open to all everyone is
-  encouraged to attend.

meetings/horizon-team-meeting.yaml

@@ -5,13 +5,8 @@ schedule:
   - time:       '2000'
     day:        Wednesday
     irc:        openstack-meeting-3
-    frequency:  biweekly-odd
+    frequency:  weekly
     start_date: 20160106
-  - time:       '800'
-    day:        Wednesday
-    irc:        openstack-meeting-3
-    frequency:  biweekly-even
-    start_date: 20160113
 chair:  Rob Cresswell (robcresswell)
 description:  >
   The OpenStack Horizon Team holds public meetings on IRC.