Roles don't have dashes in their names anymore, so no point in converting

playbooks/roles/edx_service/tasks/main.yml

@@ -93,17 +93,14 @@
     - deploy
   when: edx_service_config is defined
 
-# Replace dashes with underscores to support roles that use
-# dashes (the role vars will contain underscores)
-#TODO: REMOVE UNDERSCORE-TO-DASH CONVERSION ONCE ALL ROLES ARE NORMALIZED
 - name: install a bunch of system packages on which edx_service relies
   apt: pkg={{ item }} state=present
-  with_items: "{{ edx_service_name.replace('-', '_') }}_debian_pkgs"
+  with_items: "{{ edx_service_name }}_debian_pkgs"
   when: ansible_distribution in common_debian_variants
 
 - name: install a bunch of system packages on which edx_service relies
   yum: pkg={{ item }} state=present
-  with_items: "{{ edx_service_name.replace('-', '_') }}_redhat_pkgs"
+  with_items: "{{ edx_service_name }}_redhat_pkgs"
   when: ansible_distribution in common_redhat_variants