remove junk

app/controllers/collections_controller.rb

@@ -145,14 +145,6 @@ class CollectionsController < ApplicationController
   end
 
   private
-
-  def authorize_create_collection!
-  end
-
-  def learning_objects_to_collections(learning_objects, collections)
-
-  end
-
   def check_collection_privacy!(collection)
     if collection.privacy == "private"
       redirect_to :root, notice: 'Está é uma coleção privada.' unless collection.owner?(current_user)