approvers: remove "you haven't moderated in awhile" notice.

Remove the nag message when an approver hasn't approved anything
recently. Also remove the modqueue random posts page. As of 3d410398a,
inactive approvers are now warned via dmails.

app/controllers/moderator/post/queues_controller.rb

@@ -1,15 +1,11 @@
 module Moderator
   module Post
     class QueuesController < ApplicationController
-      RANDOM_COUNT = 12
-
       respond_to :html, :json
       before_action :approver_only
       skip_before_action :api_check
 
       def show
-        cookies.permanent[:moderated] = Time.now.to_i
-
         if search_params[:per_page]
           cookies.permanent["mq_per_page"] = search_params[:per_page]
         end
@@ -21,23 +17,6 @@ module Moderator
         respond_with(@posts)
       end
 
-      def random
-        cookies.permanent[:moderated] = Time.now.to_i
-
-        ::Post.without_timeout do
-          @posts = ::Post.includes(:disapprovals, :uploader).order("posts.id asc").pending_or_flagged.available_for_moderation(false).reorder("random()").limit(RANDOM_COUNT)
-          @posts.each # hack to force rails to eager load
-
-          if @posts.empty?
-            flash[:notice] = "Nothing left to moderate!"
-            redirect_to(params[:return_to] || posts_path)
-            return
-          end
-        end
-
-        respond_with(@posts)
-      end
-
       protected
 
       def per_page

app/controllers/post_approvals_controller.rb

@@ -3,7 +3,6 @@ class PostApprovalsController < ApplicationController
   respond_to :html, :xml, :json, :js
 
   def create
-    cookies.permanent[:moderated] = Time.now.to_i
     post = Post.find(params[:post_id])
     @approval = post.approve!
     respond_with(@approval)

app/controllers/post_disapprovals_controller.rb

@@ -4,7 +4,6 @@ class PostDisapprovalsController < ApplicationController
   respond_to :js, :html, :json, :xml
 
   def create
-    cookies.permanent[:moderated] = Time.now.to_i
     @post_disapproval = PostDisapproval.create(user: CurrentUser.user, **post_disapproval_params)
     respond_with(@post_disapproval)
   end