DEV: Do not include method definitions in serializer `attributes`

These accidental inclusions are mostly no-ops (because the method name is also included as an explicit symbol). The mistakes were made more obvious because syntax_tree adjusted the indentation of these methods

app/serializers/current_user_option_serializer.rb

@@ -17,7 +17,8 @@ class CurrentUserOptionSerializer < ApplicationSerializer
              :seen_popups,
              :should_be_redirected_to_top,
              :redirected_to_top,
-             :treat_as_new_topic_start_date,
+             :treat_as_new_topic_start_date
+
   def likes_notifications_disabled
     object.likes_notifications_disabled?
   end

app/serializers/topic_link_serializer.rb

@@ -10,7 +10,8 @@ class TopicLinkSerializer < ApplicationSerializer
              :clicks,
              :user_id,
              :domain,
-             :root_domain,
+             :root_domain
+
   def attachment
     Discourse.store.has_been_uploaded?(object.url)
   end

app/serializers/topic_post_count_serializer.rb

@@ -9,7 +9,8 @@ class TopicPostCountSerializer < BasicUserSerializer
              :flair_bg_color,
              :admin,
              :moderator,
-             :trust_level,
+             :trust_level
+
   def id
     object[:user].id
   end

app/serializers/user_option_serializer.rb

@@ -36,10 +36,10 @@ class UserOptionSerializer < ApplicationSerializer
              :skip_new_user_tips,
              :default_calendar,
              :oldest_search_log_date,
-             :seen_popups,
+             :seen_popups
+
   def auto_track_topics_after_msecs
-               object.auto_track_topics_after_msecs ||
-                 SiteSetting.default_other_auto_track_topics_after_msecs
+    object.auto_track_topics_after_msecs || SiteSetting.default_other_auto_track_topics_after_msecs
   end
 
   def notification_level_when_replying

app/serializers/user_serializer.rb

@@ -67,9 +67,8 @@ class UserSerializer < UserCardSerializer
                      :sidebar_list_destination,
                      :display_sidebar_tags
 
-  untrusted_attributes :bio_raw,
-                       :bio_cooked,
-                       :profile_background_upload_url,
+  untrusted_attributes :bio_raw, :bio_cooked, :profile_background_upload_url
+
   ###
   ### ATTRIBUTES
   ###