Remove linux:network:interface from designate dns role

Change-Id: I06f2e38b8ea325c92bd078a896feab3981afd8b1
diff --git "a/\173\173 cookiecutter._env_name \175\175/features/designate_pool_manager/dns.yml" "b/\173\173 cookiecutter._env_name \175\175/features/designate_pool_manager/dns.yml"
index 2d3f0c6..cfbc7f9 100644
--- "a/\173\173 cookiecutter._env_name \175\175/features/designate_pool_manager/dns.yml"
+++ "b/\173\173 cookiecutter._env_name \175\175/features/designate_pool_manager/dns.yml"
@@ -24,11 +24,3 @@
       package:
         python-msgpack:
           version: latest
-    network:
-      interface:
-        ens4:
-          enabled: true
-          type: eth
-          proto: static
-          address: ${_param:single_address}
-          netmask: 255.255.255.0