diff --git a/app/assets/stylesheets/rtl.css b/app/assets/stylesheets/rtl.css
deleted file mode 100644
index 7bc3b5a4c..000000000
--- a/app/assets/stylesheets/rtl.css
+++ /dev/null
@@ -1,12 +0,0 @@
-/**
- * Redmine - project management software
- * Copyright (C) 2006-  Jean-Philippe Lang
- * This code is released under the GNU General Public License.
- */
-
-/***** Diff *****/
-
-/***** My page layout *****/
-
-/***** Media print specific styles *****/
-
diff --git a/app/views/layouts/base.html.erb b/app/views/layouts/base.html.erb
index d0b46eb4b..a4ea50776 100644
--- a/app/views/layouts/base.html.erb
+++ b/app/views/layouts/base.html.erb
@@ -9,7 +9,6 @@
 <%= csrf_meta_tag %>
 <%= favicon %>
 <%= stylesheet_link_tag 'jquery/jquery-ui-1.13.2', 'tribute-5.1.3', 'application', 'responsive', :media => 'all' %>
-<%= stylesheet_link_tag 'rtl', :media => 'all' if l(:direction) == 'rtl' %>
 <%= javascript_importmap_tags %>
 <%= javascript_heads %>
 <%= heads_for_theme %>