Adjust notifications helper

app/helpers/notifications_helper.rb

@@ -16,20 +16,17 @@ module NotificationsHelper
   end
 
   def render_for_banner(title)
-    @@banner_renderer ||= NotificationTitleRenderer.new({ invert_link_colour: true, bold_all_text: true })
-    @@banner_markdown ||= Redcarpet::Markdown.new(@@banner_renderer, no_intra_emphasis: true)
-    @@banner_markdown.render(title)
+    banner_renderer ||= NotificationTitleRenderer.new({ invert_link_colour: true, bold_all_text: true })
+    Redcarpet::Markdown.new(banner_renderer, no_intra_emphasis: true).render(title)
   end
 
   def render_for_summary(title)
-    @@plain_title_renderer ||= NotificationTitleRenderer.new({ invert_link_colour: false, bold_all_text: false })
-    @@plain_title_markdown ||= Redcarpet::Markdown.new(@@plain_title_renderer, no_intra_emphasis: true)
-    @@plain_title_markdown.render(title)
+    plain_title_renderer ||= NotificationTitleRenderer.new({ invert_link_colour: false, bold_all_text: false })
+    Redcarpet::Markdown.new(plain_title_renderer, no_intra_emphasis: true).render(title)
   end
+end
 
-private
-
-  class NotificationTitleRenderer < Redcarpet::Render::HTML
+class NotificationTitleRenderer < Redcarpet::Render::HTML
   def initialize(options = {})
     link_class = "govuk-link"
     link_class += " govuk-link--inverse" if options[:invert_link_colour]
@@ -43,5 +40,4 @@ private
 
     %(<p>#{text}</p>)
   end
-  end
 end