diff --git a/addons/mrp_subcontracting/__manifest__.py b/addons/mrp_subcontracting/__manifest__.py
index 220b5682dcc..d70b6fa22b8 100644
--- a/addons/mrp_subcontracting/__manifest__.py
+++ b/addons/mrp_subcontracting/__manifest__.py
@@ -90,13 +90,6 @@
             'web/static/src/legacy/js/libs/autocomplete.js',
             'web/static/src/legacy/js/libs/bootstrap.js',
             'web/static/src/legacy/js/libs/jquery.js',
-            'web/static/src/legacy/js/core/class.js',
-            'web/static/src/legacy/js/core/dialog.js',
-            'web/static/src/legacy/xml/dialog.xml',
-            'web/static/src/legacy/js/core/dom.js',
-            'web/static/src/legacy/js/core/mixins.js',
-            'web/static/src/legacy/js/core/service_mixins.js',
-            'web/static/src/legacy/js/core/widget.js',
 
             ('include', 'web._assets_bootstrap'),
 
diff --git a/addons/point_of_sale/__manifest__.py b/addons/point_of_sale/__manifest__.py
index 50d61db77ff..432676e06e1 100644
--- a/addons/point_of_sale/__manifest__.py
+++ b/addons/point_of_sale/__manifest__.py
@@ -122,7 +122,6 @@
             'barcodes/static/src/js/barcode_parser.js',
             'barcodes_gs1_nomenclature/static/src/js/barcode_parser.js',
             'barcodes_gs1_nomenclature/static/src/js/barcode_service.js',
-            'web/static/src/legacy/js/core/class.js',
             'web/static/src/views/fields/parsers.js',
             'web/static/src/webclient/barcode/barcode_scanner.js',
             'web/static/src/webclient/barcode/ZXingBarcodeDetector.js',
diff --git a/addons/project/__manifest__.py b/addons/project/__manifest__.py
index 5cee3e99a00..223913431fb 100644
--- a/addons/project/__manifest__.py
+++ b/addons/project/__manifest__.py
@@ -140,13 +140,7 @@
             'web/static/src/legacy/js/libs/autocomplete.js',
             'web/static/src/legacy/js/libs/bootstrap.js',
             'web/static/src/legacy/js/libs/jquery.js',
-            'web/static/src/legacy/js/core/class.js',
-            'web/static/src/legacy/js/core/dialog.js',
-            'web/static/src/legacy/xml/dialog.xml',
-            'web/static/src/legacy/js/core/dom.js',
-            'web/static/src/legacy/js/core/mixins.js',
-            'web/static/src/legacy/js/core/service_mixins.js',
-            'web/static/src/legacy/js/core/widget.js',
+
             ('include', 'web._assets_bootstrap_backend'),
 
             'base/static/src/css/modules.css',
diff --git a/addons/website_slides/__manifest__.py b/addons/website_slides/__manifest__.py
index cb45bc0f89f..522e48eae7f 100644
--- a/addons/website_slides/__manifest__.py
+++ b/addons/website_slides/__manifest__.py
@@ -180,13 +180,6 @@ Featuring
             'web/static/src/legacy/js/libs/bootstrap.js',
             'web/static/src/legacy/js/libs/jquery.js',
             'website/static/src/libs/zoomodoo/zoomodoo.js',
-            'web/static/src/legacy/js/core/class.js',
-            'web/static/src/legacy/js/core/dialog.js',
-            'web/static/src/legacy/xml/dialog.xml',
-            'web/static/src/legacy/js/core/dom.js',
-            'web/static/src/legacy/js/core/mixins.js',
-            'web/static/src/legacy/js/core/service_mixins.js',
-            'web/static/src/legacy/js/core/widget.js',
             'web/static/src/core/**/*.js',
             'web/static/src/env.js',
             'web/static/src/libs/pdfjs.js',