Remove the unnecessary task for octavia

Since the Victoria released, the unnecessary task should be clean up.

Change-Id: Idd2a05ed0594dcca6fa9881dee63f5550cb6dc0e

ansible/roles/octavia/tasks/upgrade.yml

@@ -5,18 +5,3 @@
 
 - name: Flush handlers
   meta: flush_handlers
-
-# TODO(mgoddard): Remove this task in Victoria.
-- name: Removing octavia user from admin project
-  become: true
-  kolla_toolbox:
-    module_name: "os_user_role"
-    module_args:
-      user: "{{ octavia_keystone_user }}"
-      role: admin
-      state: absent
-      project: "{{ keystone_admin_project }}"
-      auth: "{{ openstack_octavia_auth }}"
-      endpoint_type: "{{ openstack_interface }}"
-      cacert: "{{ openstack_cacert }}"
-  run_once: True