Remove unused "outfits#new newest_items" cache

Huh! This cache key seemed to only be referenced in checks and expirations, but was never actually used! So I guess we've been loading the modeling predictions every time for a while huh??

We'll get smarter about that someday, but anyway, that lets us delete our Item resque tasks and ItemObserver!

app/controllers/outfits_controller.rb

@@ -46,7 +46,6 @@ class OutfitsController < ApplicationController
       @species = Species.alphabetical
     end
     
-    unless localized_fragment_exist?('outfits#new newest_items')
     newest_items = Item.newest.select([:id, :updated_at, :thumbnail_url, :rarity_index]).
       includes(:translations).limit(18)
     @newest_modeled_items, @newest_unmodeled_items =
@@ -69,7 +68,6 @@ class OutfitsController < ApplicationController
     end
 
     @species_count = Species.count
-    end
     
     unless localized_fragment_exist?('outfits#new latest_contribution')
       @latest_contribution = Contribution.recent.first

app/models/item/create_task.rb

@@ -1,19 +0,0 @@
-class Item
-  class CreateTask
-    extend FragmentExpiration
-
-    TIMEOUT_IN_SECONDS = 10
-
-    @queue = :item_create
-
-    def self.perform(id)
-      Timeout::timeout(TIMEOUT_IN_SECONDS) do
-        expire_newest_items
-      end
-    end
-
-    def self.expire_newest_items
-      expire_fragment_in_all_locales('outfits#new newest_items')
-    end
-  end
-end

app/models/item/destroy_task.rb

@@ -1,16 +0,0 @@
-class Item
-  class DestroyTask
-    extend FragmentExpiration
-
-    TIMEOUT_IN_SECONDS = 10
-
-    @queue = :item_destroy
-
-    def self.perform(id)
-      Timeout::timeout(TIMEOUT_IN_SECONDS) do
-        # TODO: it's kinda ugly to reach across classes like this
-        CreateTask.expire_newest_items
-      end
-    end
-  end
-end

app/models/item_observer.rb

@@ -1,9 +0,0 @@
-class ItemObserver < ActionController::Caching::Sweeper
-  def after_create(item)
-    Resque.enqueue(Item::CreateTask, item.id)
-  end
-
-  def after_destroy(item)
-    Resque.enqueue(Item::DestroyTask, item.id)
-  end
-end

app/views/outfits/new.html.haml

@@ -100,7 +100,6 @@
       %abbr#latest-contribution-created-at{:title => @latest_contribution.created_at.getutc.iso8601}
 
 #whats-new
-  -# TODO: cache this entire block? or just request newest items every time?
   - if @newest_unmodeled_items.present?
     #modeling-neopets-users{'data-usernames' => @neopets_usernames.to_json}
     %h3= t '.newest_items.unmodeled.header'