Remove etcd-proxy from all nodes and use etcd multiaccess

roles/etcd/tasks/refresh_config.yml

@@ -5,10 +5,3 @@
     dest: /etc/etcd.env
   notify: restart etcd
   when: is_etcd_master
-
-- name: Refresh config | Create etcd-proxy config file
-  template:
-    src: etcd-proxy.j2
-    dest: /etc/etcd-proxy.env
-  notify: restart etcd-proxy
-  when: is_etcd_proxy