DEV: Remove unused option.

DEV: Remove unused option.

Follow up to 18ed03e044611c29b006011e1b729f5a9d43163a.

diff --git a/plugins/discourse-narrative-bot/lib/discourse_narrative_bot/track_selector.rb b/plugins/discourse-narrative-bot/lib/discourse_narrative_bot/track_selector.rb
index 6be15da..dad7dc1 100644
--- a/plugins/discourse-narrative-bot/lib/discourse_narrative_bot/track_selector.rb
+++ b/plugins/discourse-narrative-bot/lib/discourse_narrative_bot/track_selector.rb
@@ -171,7 +171,6 @@ module DiscourseNarrativeBot
         self.class.i18n_key('random_mention.tracks'),
         discobot_username: discobot_username,
         reset_trigger: self.class.reset_trigger,
-        default_track: NewUserNarrative.reset_trigger,
         tracks: [NewUserNarrative.reset_trigger, AdvancedUserNarrative.reset_trigger].join(', ')
       )
 
diff --git a/plugins/discourse-narrative-bot/spec/discourse_narrative_bot/track_selector_spec.rb b/plugins/discourse-narrative-bot/spec/discourse_narrative_bot/track_selector_spec.rb
index 35c3243..761d094 100644
--- a/plugins/discourse-narrative-bot/spec/discourse_narrative_bot/track_selector_spec.rb
+++ b/plugins/discourse-narrative-bot/spec/discourse_narrative_bot/track_selector_spec.rb
@@ -21,7 +21,6 @@ describe DiscourseNarrativeBot::TrackSelector do
     #{I18n.t(
       'discourse_narrative_bot.track_selector.random_mention.tracks',
       discobot_username: discobot_username,
-      default_track: DiscourseNarrativeBot::NewUserNarrative.reset_trigger,
       reset_trigger: described_class.reset_trigger,
       tracks: "#{DiscourseNarrativeBot::NewUserNarrative.reset_trigger}, #{DiscourseNarrativeBot::AdvancedUserNarrative.reset_trigger}"
     )}

GitHub sha: 1267185a