Delete more unused code

Just some routes and controllers that I think were at various points
serving as API endpoints, but no longer do I think!

app/controllers/pet_attributes_controller.rb

@@ -1,8 +0,0 @@
-class PetAttributesController < ApplicationController
-  def index
-    render :json => {
-      :color => Color.funny.alphabetical,
-      :species => Species.alphabetical
-    }
-  end
-end

app/controllers/pet_types_controller.rb

@@ -1,10 +0,0 @@
-class PetTypesController < ApplicationController
-  def show
-    pet_type = PetType.find_by_color_id_and_species_id(params[:color_id], params[:species_id])
-    if pet_type
-      render :json => pet_type.as_json(:for => params[:for])
-    else
-      render :json => nil
-    end
-  end
-end

app/controllers/swf_assets_controller.rb

@@ -1,11 +0,0 @@
-class SwfAssetsController < ApplicationController
-  def show
-    @swf_asset = SwfAsset.find params[:id]
-    render :json => @swf_asset
-  end
-
-  def links
-    @swf_assets = SwfAsset.from_wardrobe_link_params(params[:asset_ids])
-  end
-end
-

app/controllers/zones_controller.rb

@@ -1,5 +0,0 @@
-class ZonesController < ApplicationController
-  def index
-    render json: Zone.includes(:translations).all
-  end
-end

app/helpers/item_zone_sets_helper.rb

@@ -1,2 +0,0 @@
-module ItemZoneSetsHelper
-end

app/views/swf_assets/links.html.haml

@@ -1,8 +0,0 @@
-- title t('.title')
-
-%ul#swf-assets
-  - @swf_assets.each do |swf_asset|
-    %li
-      = link_to swf_asset.url do
-        = image_tag(swf_asset.image_url([150, 150]))
-        %span= swf_asset.url

config/routes.rb

@@ -7,8 +7,6 @@ OpenneoImpressItems::Application.routes.draw do
   get '/wardrobe' => redirect('/outfits/new')
   get '/start/:color_name/:species_name' => 'outfits#start'
 
-  get '/species/:species_id/color/:color_id/pet_type.json' => 'pet_types#show'
-
   resources :contributions, :only => [:index]
   resources :items, :only => [:index, :show] do
     resources :appearances, controller: 'item_appearances', only: [:index]
@@ -18,12 +16,6 @@ OpenneoImpressItems::Application.routes.draw do
   end
   resources :outfits, :only => [:show, :create, :update, :destroy]
   resources :pet_attributes, :only => [:index]
-  resources :swf_assets, :only => [:show] do
-    collection do
-      get :links
-    end
-  end
-  resources :zones, only: [:index]
 
   scope 'import' do
     resources :neopets_page_import_tasks, only: [:new, :create],