spree/spree — comment on commit cdfb4b49e9c568ea00ea2dd041aa9e50854a0d40
File: core/app/controllers/spree/admin/states_controller.rb line 26
By BDQ:

@joneslee85 - this variable isn't needed as the link to manage states from the "Configuration" tab links directly to the country id for you.

https://github.com/spree/spree/blob/master/core/app/views/admin/configurations/index.html.erb#L28