diff --git a/modules/editor/skins/ckeditor/css/default.less b/modules/editor/skins/ckeditor/css/default.less
index bb01604bd..4b4619fa3 100644
--- a/modules/editor/skins/ckeditor/css/default.less
+++ b/modules/editor/skins/ckeditor/css/default.less
@@ -32,27 +32,6 @@
 	margin: 0 0 @content_paragraph_spacing 0;
 }
 
-/* if editor_auto_dark_mode == 'Y' load darkmode style */
-.auto_dark(@cs, @adm) when (@adm = Y) and not (@cs = moono-dark)  {
-	html {
-		body.cke_editable {
-			.light_dark(moono-dark);
-		}
-	}
-	.cke_reset {
-		span {
-			&.cke_top {
-				.light_dark_top(moono-dark);
-			}
-		}
-	}
-	.cke_button_icon, .cke_combo_button, .cke_button_arrow, .cke_button_label {
-		filter: invert(1);
-	}
-}
-.auto_dark(@cs, @adm) when not (@adm = Y) or (@cs = moono-dark) {
-}
-
 .light_dark(@cs) when (@cs = moono-dark) {
 	background-color: #333;
 	color: #fff;
diff --git a/modules/editor/skins/ckeditor/editor.html b/modules/editor/skins/ckeditor/editor.html
index 535b26804..1f6969f9e 100644
--- a/modules/editor/skins/ckeditor/editor.html
+++ b/modules/editor/skins/ckeditor/editor.html
@@ -6,7 +6,6 @@
 {@ $css_var->content_line_height = $content_line_height ? $content_line_height: 'none';}
 {@ $css_var->content_word_break = $content_word_break ? $content_word_break : 'none';}
 {@ $css_var->content_paragraph_spacing = $content_paragraph_spacing ? $content_paragraph_spacing : 'none';}
-{@ $css_var->auto_dark_mode = ($editor_auto_dark_mode)? 'Y':'N' }
 
 {@ Context::set('css_var',$css_var);}
 <load target="css/default.less" vars="$css_var" />