chore/Remove FF_NEW_CSR_URL code

The new url is live, and content-platform-proxy has been updated to
include all the redirects.  We can therefore remove all the feature
flagged code

Author: KPobeeNorris

config/routes.rb

@@ -23,11 +23,7 @@ def valid_format?(request)
 # the path below.
 # If the dummy page entry that represents this app is moved in Contentful, this url will need to be updated,
 # a redirect added in Contentful, and the CloudFront config changed to reflect the new url.
-CSR_APP_PATH = if Feature.enabled?("FF_NEW_CSR_URL")
-                 "/consumer/energy/energy-supply/get-a-better-energy-deal/compare-domestic-energy-suppliers-customer-service/"
-               else
-                 "/consumer/your-energy/get-a-better-energy-deal/compare-domestic-energy-suppliers-customer-service/"
-               end
+CSR_APP_PATH = "/consumer/energy/energy-supply/get-a-better-energy-deal/compare-domestic-energy-suppliers-customer-service/"
 
 Rails.application.routes.draw do
   # Define your application routes per the DSL in https://guides.rubyonrails.org/routing.html
@@ -39,13 +35,6 @@ def valid_format?(request)
 
     constraints CountryConstraint.new do
       scope "(:country)" do
-        if Feature.enabled?("FF_NEW_CSR_URL")
-          get "/consumer/your-energy/get-a-better-energy-deal/compare-domestic-energy-suppliers-customer-service",
-              to: redirect(CSR_APP_PATH)
-          get "/consumer/your-energy/get-a-better-energy-deal/compare-domestic-energy-suppliers-customer-service/:id/details",
-              to: redirect("#{CSR_APP_PATH}%{id}/details")
-        end
-
         # full table page
         get CSR_APP_PATH, to: "csr_table/suppliers#index", as: "suppliers"