Removed default_location from learning object serializer

Signed-off-by: Israel Barreto Sant'Anna <ibsa14@inf.ufpr.br>

app/models/learning_object.rb

@@ -124,7 +124,7 @@ class LearningObject < ApplicationRecord
   end
 
   def download_link
-    retrieve_link
+    object_type.try(:name) == ("Vídeo" || "Áudio") ? default_attachment.try(:retrieve_cache_link) : default_attachment.try(:retrieve_url)
   end
 
   ## score methods

app/serializers/learning_object_serializer.rb

 class LearningObjectSerializer < ActiveModel::Serializer
   cache key: 'learning_object', expires_in: 4.hours, except: [:likes_count, :liked, :reviewed, :complained]
 
-  def default_location
-    object_type == ("Vídeo" || "Áudio") ? object.default_attachment.try(:retrieve_cache_link) : object.default_attachment.try(:retrieve_url)
-  end
-
   def default_mime_type
     object.default_attachment.try(:mime_type)
   end
@@ -42,7 +38,6 @@ class LearningObjectSerializer < ActiveModel::Serializer
              :object_type,
              :language,
              :default_attachment_id,
-             :default_location,
              :default_mime_type,
              :score,
              :state,