DEV: Remove unused code from `TopicTrackingState`.

DEV: Remove unused code from TopicTrackingState.

TopicTrackingState contains only class methods so attr_accessor has no meaning for the class. Probably stale code from a long time ago.

diff --git a/app/models/topic_tracking_state.rb b/app/models/topic_tracking_state.rb
index 3e44f0c..608c8f3 100644
--- a/app/models/topic_tracking_state.rb
+++ b/app/models/topic_tracking_state.rb
@@ -31,15 +31,6 @@ class TopicTrackingState
   DISMISS_NEW_MESSAGE_TYPE = "dismiss_new"
   MAX_TOPICS = 5000
 
-  attr_accessor :user_id,
-                :topic_id,
-                :highest_post_number,
-                :last_read_post_number,
-                :created_at,
-                :category_id,
-                :notification_level,
-                :tags
-
   def self.publish_new(topic)
     return unless topic.regular?
 

GitHub sha: 0198ffd2b1d9b5834bba369618400852c1ea28c7

This commit appears in #14025 which was approved by eviltrout. It was merged by tgxworld.