Replace Makara with an initial Rails 6 role based splitting method.

app/lib/force_db_writer_role.rb

@@ -0,0 +1,10 @@
+module ForceDbWriterRole
+  extend ActiveSupport::Concern
+  # This is intended to be used as an around_action hook for GET
+  # endpoints that need to perform writes to ActiveRecord
+  def force_writer_db_role
+    ActiveRecord::Base.connected_to(role: :writing) do
+      yield
+    end
+  end
+end