diff --git a/Gruntfile.js b/Gruntfile.js
index b91a06770f..355c113d6a 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -41,7 +41,6 @@ module.exports = function (grunt) {
 				files: {
 					"pixelegg/css/pixelegg.min.css": [
 						"node_modules/flatpickr/dist/themes/light.css",
-						"api/js/egw_action/test/skins/dhtmlxmenu_egw.css",
 						"vendor/bower-asset/diff2html/dist/diff2html.css",
 						"vendor/bower-asset/cropper/dist/cropper.min.css",
 						"api/templates/default/css/flags.css",
@@ -53,7 +52,6 @@ module.exports = function (grunt) {
 					],
 					"pixelegg/css/mobile.min.css": [
 						"node_modules/flatpickr/dist/themes/light.css",
-						"api/js/egw_action/test/skins/dhtmlxmenu_egw.css",
 						"vendor/bower-asset/diff2html/dist/diff2html.css",
 						"vendor/bower-asset/cropper/dist/cropper.min.css",
 						"api/templates/default/css/flags.css",
@@ -65,7 +63,6 @@ module.exports = function (grunt) {
 					],
 					"pixelegg/mobile/fw_mobile.min.css": [
 						"node_modules/flatpickr/dist/themes/light.css",
-						"api/js/egw_action/test/skins/dhtmlxmenu_egw.css",
 						"api/js/etemplate/lib/jsdifflib/diffview.css",
 						"vendor/bower-asset/cropper/dist/cropper.min.css",
 						"api/templates/default/css/flags.css",
@@ -77,7 +74,6 @@ module.exports = function (grunt) {
 					],
 					"pixelegg/css/monochrome.min.css": [
 						"node_modules/flatpickr/dist/themes/light.css",
-						"api/js/egw_action/test/skins/dhtmlxmenu_egw.css",
 						"vendor/bower-asset/diff2html/dist/diff2html.css",
 						"vendor/bower-asset/cropper/dist/cropper.min.css",
 						"api/templates/default/css/flags.css",
@@ -89,7 +85,6 @@ module.exports = function (grunt) {
 					],
 					"pixelegg/css/modern.min.css": [
 						"node_modules/flatpickr/dist/themes/light.css",
-						"api/js/egw_action/test/skins/dhtmlxmenu_egw.css",
 						"vendor/bower-asset/diff2html/dist/diff2html.css",
 						"vendor/bower-asset/cropper/dist/cropper.min.css",
 						"api/templates/default/css/flags.css",