FEATURE: remove star concept from Discourse

app/serializers/topic_list_item_serializer.rb

@@ -2,7 +2,6 @@ class TopicListItemSerializer < ListableTopicSerializer
 
   attributes :views,
              :like_count,
-             :starred,
              :has_summary,
              :archetype,
              :last_poster_username,
@@ -13,12 +12,6 @@ class TopicListItemSerializer < ListableTopicSerializer
   has_many :posters, serializer: TopicPosterSerializer, embed: :objects
   has_many :participants, serializer: TopicPosterSerializer, embed: :objects
 
-  def starred
-    object.user_data.starred?
-  end
-
-  alias :include_starred? :has_user_data
-
   def posters
     object.posters || []
   end

app/serializers/topic_view_serializer.rb

@@ -29,7 +29,6 @@ class TopicViewSerializer < ApplicationSerializer
   attributes :draft,
              :draft_key,
              :draft_sequence,
-             :starred,
              :posted,
              :unpinned,
              :pinned_globally,
@@ -145,11 +144,6 @@ class TopicViewSerializer < ApplicationSerializer
     object.topic_user.present?
   end
 
-  def starred
-    object.topic_user.starred?
-  end
-  alias_method :include_starred?, :has_topic_user?
-
   def highest_post_number
     object.highest_post_number
   end