Remove duplicate method def `ApplicationHelper#instance_presenter` (#30331)

app/helpers/application_helper.rb

@@ -240,6 +240,10 @@ module ApplicationHelper
     EmojiFormatter.new(html, custom_emojis, other_options.merge(animate: prefers_autoplay?)).to_s
   end
 
+  def mascot_url
+    full_asset_url(instance_presenter.mascot&.file&.url || frontend_asset_path('images/elephant_ui_plane.svg'))
+  end
+
   def instance_presenter
     @instance_presenter ||= InstancePresenter.new
   end

app/helpers/mascot_helper.rb

@@ -1,11 +0,0 @@
-# frozen_string_literal: true
-
-module MascotHelper
-  def mascot_url
-    full_asset_url(instance_presenter.mascot&.file&.url || frontend_asset_path('images/elephant_ui_plane.svg'))
-  end
-
-  def instance_presenter
-    @instance_presenter ||= InstancePresenter.new
-  end
-end

app/mailers/user_mailer.rb

@@ -5,7 +5,6 @@ class UserMailer < Devise::Mailer
 
   helper :accounts
   helper :application
-  helper :mascot
   helper :formatting
   helper :instance
   helper :routing