13864 - remove unnecessary routes for update positions

app/views/spree/admin/variants/index.html.haml

@@ -4,7 +4,7 @@
 
 #new_variant
 
-%table.index.sortable{"data-sortable-link" => update_positions_admin_product_variants_path(@product)}
+%table.index
   %colgroup
     %col{style: "width: 25%"}/
     %col{style: "width: 25%"}/

config/routes/spree.rb

@@ -69,11 +69,7 @@ Spree::Core::Engine.routes.draw do
         end
       end
 
-      resources :variants do
-        collection do
-          post :update_positions
-        end
-      end
+      resources :variants
     end
 
     get '/variants/search', :to => "variants#search", :as => :search_variants