Merge pull request #281 from edx/carsongee/remove_mongo_server_from_xqueue

Removed mongodb server from package list as it isn't required for xqueue

playbooks/roles/xqueue/defaults/main.yml

@@ -115,7 +115,6 @@ xqueue_debian_pkgs:
   - libxml2-utils
   - libxslt1-dev
   - maven2
-  - mongodb
   - mongodb-clients
   - mysql-client
   - npm