Remove banner partial from application layout

We will add this back in on #3474

Author: hannako

app/views/layouts/application.html.erb

@@ -27,8 +27,6 @@
       <% end %>
     <% end %>
 
-    <%= render "govuk_web_banners/recruitment_banner" %>
-
     <%= yield :header %>
 
     <main role="main" id="content" class="<%= @content_item.schema_name.dasherize %>" lang="<%= I18n.locale %>">