Delete unused /comments/index_all route and unused _threshold.html.erb template.

app/views/comments/partials/index/_threshold.html.erb

@@ -1,3 +0,0 @@
-<% if post.hidden_comment_count(@current_user) > 0 %>
-  <span class="info" id="threshold-comments-notice-for-<%= post.id %>"><%= link_to_remote "#{pluralize post.hidden_comment_count(@current_user), 'comment'} below threshold", :url => index_all_comments_path(:post_id => post.id) %>.</span>
-<% end %>

config/routes.rb

@@ -102,7 +102,6 @@ Rails.application.routes.draw do
     resources :votes, :controller => "comment_votes", :only => [:create, :destroy]
     collection do
       get :search
-      get :index_all
     end
     member do
       put :unvote