Fix for the issue introduces with the change in https://github.com/elastic/ansible-elasticsearch/pull/170

Changed debian repo from http to https, but exisiting http repos (from earlier runs) would persist and lead to an duplicate entry warning in apt.
This PR will remove the old http repo, if present.

tasks/elasticsearch-Debian.yml

@@ -14,7 +14,10 @@
   when: es_use_repository and es_apt_key
 
 - name: Debian - Add elasticsearch repository
-  apt_repository: repo="{{ es_apt_url }}" state=present
+  apt_repository: repo={{ item.repo }} state={{ item.state}}
+  with_items:
+    - { repo: "{{ es_apt_url_old }}", state: "absent" }
+    - { repo: "{{ es_apt_url }}", state: "present" }
   when: es_use_repository
 
 - name: Debian - Include versionlock