diff --git a/addons/mrp_subcontracting/__manifest__.py b/addons/mrp_subcontracting/__manifest__.py
index 43cbf45f8f1..d2e6ebd0bed 100644
--- a/addons/mrp_subcontracting/__manifest__.py
+++ b/addons/mrp_subcontracting/__manifest__.py
@@ -164,9 +164,7 @@
             'web/static/src/legacy/legacy_service_provider.js',
             'web/static/src/legacy/legacy_promise_error_handler.js',
             'web/static/src/legacy/legacy_rpc_error_handler.js',
-            'web/static/src/legacy/root_widget.js',
             'web/static/src/legacy/legacy_setup.js',
-            'web/static/src/legacy/root_widget.js',
             'web/static/src/legacy/backend_utils.js',
             'web/static/src/legacy/utils.js',
             'web/static/src/legacy/js/core/dates.js',
diff --git a/addons/project/__manifest__.py b/addons/project/__manifest__.py
index a6be90ee5a8..fa4413d6610 100644
--- a/addons/project/__manifest__.py
+++ b/addons/project/__manifest__.py
@@ -215,9 +215,7 @@
             'web/static/src/legacy/legacy_service_provider.js',
             'web/static/src/legacy/legacy_promise_error_handler.js',
             'web/static/src/legacy/legacy_rpc_error_handler.js',
-            'web/static/src/legacy/root_widget.js',
             'web/static/src/legacy/legacy_setup.js',
-            'web/static/src/legacy/root_widget.js',
             'web/static/src/legacy/backend_utils.js',
             'web/static/src/legacy/utils.js',
             'web/static/src/legacy/js/core/dates.js',
diff --git a/addons/web/__manifest__.py b/addons/web/__manifest__.py
index 4d4a90fa42a..2c3fe9b5188 100644
--- a/addons/web/__manifest__.py
+++ b/addons/web/__manifest__.py
@@ -156,7 +156,6 @@ This module provides the core of the Odoo Web Client.
             'web/static/src/legacy/legacy_service_provider.js',
             'web/static/src/legacy/legacy_promise_error_handler.js',
             'web/static/src/legacy/legacy_rpc_error_handler.js',
-            'web/static/src/legacy/root_widget.js',
             'web/static/src/legacy/backend_utils.js',
             'web/static/src/legacy/utils.js',
             'web/static/src/legacy/js/core/dates.js',
diff --git a/addons/web/static/src/legacy/root_widget.js b/addons/web/static/src/legacy/root_widget.js
deleted file mode 100644
index 4ad94ed6da7..00000000000
--- a/addons/web/static/src/legacy/root_widget.js
+++ /dev/null
@@ -1,12 +0,0 @@
-/** @odoo-module alias=root.widget **/
-/**
- * This module exists so that web_tour can use it as the parent of the
- * TourManager so it can get access to _trigger_up.
- */
-// need to wait for owl.Component.env to be set by web.legacySetup
-import "web.legacySetup";
-import { ComponentAdapter } from "@web/legacy/js/owl_compatibility";
-// for its method _trigger_up. We can't use a standalone adapter because it
-// attempt to call env.isDebug which is not defined in the tests when this
-// module is loaded.
-export default new ComponentAdapter({ Component: owl.Component }, owl.Component.env);