Remove Dragonflow from the official projects list

Since Dragonflow is no longer maintained, we see no
reason to keep it on the official projects list.
Therefore, we are removing it.

Change-Id: Iee57de1ebd3ac4d2fd73235b205a6695b8798fff

reference/legacy.yaml

@@ -128,6 +128,27 @@ cue:
         - type:library
         - release:independent
 
+dragonflow:
+  ptl:
+    name: Omer Anson
+    irc: oanson
+    email: omer.anson@toganetworks.com
+  appointed:
+    - stein
+  irc-channel: openstack-dragonflow
+  retired-on: 2018-11-01
+  mission: >
+    Dragonflow is a distributed control plane implementation of Neutron.
+    Its mission is to implement advanced networking services driven by
+    the Neutron API and running on a distributed control plane.
+    It's designed to support containers networking and large scale
+    production loads.
+  url: https://wiki.openstack.org/wiki/Dragonflow
+  deliverables:
+    dragonflow:
+      repos:
+        - openstack/dragonflow
+
 Documentation:
   irc-channel: openstack-doc
   url: https://wiki.openstack.org/wiki/Documentation

reference/projects.yaml

@@ -371,26 +371,6 @@ Documentation:
       repos:
         - openstack/contributor-guide
 
-dragonflow:
-  ptl:
-    name: Omer Anson
-    irc: oanson
-    email: omer.anson@toganetworks.com
-  appointed:
-    - stein
-  irc-channel: openstack-dragonflow
-  mission: >
-    Dragonflow is a distributed control plane implementation of Neutron.
-    Its mission is to implement advanced networking services driven by
-    the Neutron API and running on a distributed control plane.
-    It's designed to support containers networking and large scale
-    production loads.
-  url: https://wiki.openstack.org/wiki/Dragonflow
-  deliverables:
-    dragonflow:
-      repos:
-        - openstack/dragonflow
-
 ec2-api:
   ptl:
     name: Andrey Pavlov