Revert "Merge branch 'ft-ansible-common' into 'develop'"

This reverts merge request !2

main.yml

@@ -1,7 +1,11 @@
 ---
-# Common node configuration, run via ansible-pull.
-- name: Common Node Configuration
+# Common playbook. Imported by the node-specific playbook in the local repo;
+# can also be run on its own for testing.
+- name: Common node configuration
   hosts: all
   become: true
+  vars_files:
+    - group_vars/all.yml
   roles:
-    - role: common
+    - role: base_packages
+    - role: example_config