Update vagrant playbook.

Swap lms and lms-xml nginx ports and remove edxapp_sandbox.yml from vars_files because it no longer exists.

playbooks/vagrant.yml

@@ -7,9 +7,8 @@
   vars_files:
     - "group_vars/all"
     - "{{ secure_dir }}/vars/edxapp_ref_users.yml"
-    - "{{ secure_dir }}/vars/edxapp_sandbox.yml"
   roles:
     - common
     - nginx
     - edxlocal
-    - edxapp
+    - { role: 'edxapp', lms_nginx_port: 18030, lms_xml_nginx_port: 80 }