Fix dns role for ctl03 node

Change-Id: Ife79f685edaefc4edc21046d711f67ffa763c5d0
diff --git a/tcp_tests/templates/cookied-mcp-queens-dvr/_context-environment.yaml b/tcp_tests/templates/cookied-mcp-queens-dvr/_context-environment.yaml
index df25e79..42d9589 100644
--- a/tcp_tests/templates/cookied-mcp-queens-dvr/_context-environment.yaml
+++ b/tcp_tests/templates/cookied-mcp-queens-dvr/_context-environment.yaml
@@ -46,7 +46,6 @@
       - openstack_database
       - openstack_message_queue
       - linux_system_codename_xenial
-      - openstack_dns
       interfaces:
         ens3:
           role: single_dhcp