DEV: Remove unused `offscreen-content` (#13133)

DEV: Remove unused offscreen-content (#13133)

Looks like a vestige of Ember 1.x?

diff --git a/app/assets/javascripts/discourse/app/index.html b/app/assets/javascripts/discourse/app/index.html
index 848e92b..1fedae9 100644
--- a/app/assets/javascripts/discourse/app/index.html
+++ b/app/assets/javascripts/discourse/app/index.html
@@ -25,9 +25,6 @@
     <section id='main'>
     </section>
 
-    <div id='offscreen-content'>
-    </div>
-
     <bootstrap-content key="hidden-login-form">
     <bootstrap-content key="preloaded">
 
diff --git a/app/assets/stylesheets/common/foundation/base.scss b/app/assets/stylesheets/common/foundation/base.scss
index cdb409a..9cee56c 100644
--- a/app/assets/stylesheets/common/foundation/base.scss
+++ b/app/assets/stylesheets/common/foundation/base.scss
@@ -121,10 +121,6 @@ pre code {
   clear: both;
 }
 
-#offscreen-content {
-  display: none;
-}
-
 // Tables
 // --------------------------------------------------
 
diff --git a/app/views/layouts/application.html.erb b/app/views/layouts/application.html.erb
index 205637c..7c6f820 100644
--- a/app/views/layouts/application.html.erb
+++ b/app/views/layouts/application.html.erb
@@ -98,9 +98,6 @@
     <section id='main'>
     </section>
 
-    <div id='offscreen-content'>
-    </div>
-
     <% unless current_user %>
       <form id='hidden-login-form' method="post" action="<%=main_app.login_path%>" style="display: none;">
         <input name="username" type="text"     id="signin_username">

GitHub sha: 9b9b601e

This commit appears in #13133 which was approved by eviltrout. It was merged by CvX.