Stop caching trade users on item page

Idk this one might actually be a bit of a pain to load? But I'd want to optimize it differently anyway, and there's overhauls we're already planning to do here.

app/models/closet_hanger_observer.rb

@@ -1,20 +0,0 @@
-class ClosetHangerObserver < ActionController::Caching::Sweeper
-  extend FragmentExpiration
-
-  def after_create(hanger)
-    self.class.expire_item_trade_hangers(hanger) if hanger.trading?
-  end
-
-  def after_update(hanger)
-    self.class.expire_item_trade_hangers(hanger) if hanger.list_id_changed?
-  end
-
-  def after_destroy(hanger)
-    self.class.expire_item_trade_hangers(hanger) if hanger.trading?
-  end
-
-  def self.expire_item_trade_hangers(hanger)
-    expire_fragment_in_all_locales("items/#{hanger.item_id} trade_hangers")
-    expire_fragment_in_all_locales("items/#{hanger.item_id} trade_hangers owned=#{hanger.owned}")
-  end
-end

app/models/closet_list.rb

@@ -1,7 +1,6 @@
 class ClosetList < ActiveRecord::Base
   belongs_to :user
   has_many :hangers, :class_name => 'ClosetHanger', :foreign_key => 'list_id'
-  # Nullification of associated records occurs in the ClosetListObserver.
 
   validates :name, :presence => true, :uniqueness => {:scope => :user_id}
   validates :user, :presence => true

app/models/closet_list_observer.rb

@@ -1,18 +0,0 @@
-class ClosetListObserver < ActionController::Caching::Sweeper
-  include FragmentExpiration
-
-  def after_update(list)
-    expire_all_items_trade_hangers(list) if list.trading_changed?
-  end
-
-  def before_destroy(list)
-    # Nullify all the child records explicitly, which will in turn trigger
-    # their update callbacks and expire their items' caches. This occurs in the
-    # same transaction as the list's destruction.
-    list.hangers.each { |h| h.list_id = nil; h.save! }
-  end
-
-  def expire_all_items_trade_hangers(list)
-    list.hangers.each { |h| ClosetHangerObserver.expire_item_trade_hangers(h) }
-  end
-end

app/models/user_sweeper.rb

@@ -1,8 +0,0 @@
-class UserSweeper < ActionController::Caching::Sweeper
-  observe User
-  def after_update(user)
-    # Delegate null-list sweeping to the ClosetListObserver.
-    null_lists = [true, false].map { |owned| user.null_closet_list(owned) }
-    null_lists.each { |list| ClosetListObserver.instance.after_update(list) }
-  end
-end

app/views/items/show.html.haml

@@ -59,10 +59,8 @@
     - else
       = list_zones @restricted_zones
 
-- localized_cache "items/#{@item.id} trade_hangers" do
 #trade-hangers
   - [true, false].each do |owned|
-      - localized_cache "items/#{@item.id} trade_hangers owned=#{owned}" do
     %p
       %strong
         = trading_closet_hangers_header(owned, @trading_closet_hangers_by_owned[owned].size)

config/application.rb

@@ -12,10 +12,6 @@ module OpenneoImpressItems
     # Application configuration should go into files in config/initializers
     # -- all .rb files in that directory are automatically loaded.
 
-    # Activate observers that should always be running
-    config.active_record.observers = [:closet_hanger_observer,
-      :closet_list_observer, :user_sweeper]
-
     # Set Time.zone default to the specified zone and make Active Record auto-convert to this zone.
     # Run "rake -D time" for a list of tasks for finding time zone names. Default is UTC.
     # config.time_zone = 'Central Time (US & Canada)'