Removing Name tag since it's not used currently

Updating default tempalte to point to the multi-instance

playbooks/cloudformation.yml

@@ -33,12 +33,11 @@
     cloudformation: >
       stack_name="$name" state=present
       region=$region disable_rollback=false
-      template=files/edx-server-ubuntu-configuration.json
+      template=../cloudformation_templates/edx-server-multi-instance.json
     args:
       template_parameters:
         KeyName: $key
         InstanceType: m1.small
-        NameTag: $name
         GroupTag: $group
     register: stack
   - name: show stack outputs