Removed code not in upstream

app/controllers/auth/registrations_controller.rb

@@ -50,7 +50,6 @@ class Auth::RegistrationsController < Devise::RegistrationsController
     resource.registration_form_time = session[:registration_form_time]
     resource.sign_up_ip             = request.remote_ip
 
-    resource.current_sign_in_ip = request.remote_ip if resource.current_sign_in_ip.nil?
     resource.build_account if resource.account.nil?
   end