diff --git a/addons/payment_adyen/__manifest__.py b/addons/payment_adyen/__manifest__.py
index 7aea95b62ef..35aad13ac39 100644
--- a/addons/payment_adyen/__manifest__.py
+++ b/addons/payment_adyen/__manifest__.py
@@ -19,7 +19,6 @@
     'assets': {
         'web.assets_frontend': [
             'payment_adyen/static/src/js/payment_form.js',
-            'payment_adyen/static/src/scss/dropin.scss',
         ],
     },
     'license': 'LGPL-3',
diff --git a/addons/payment_adyen/static/src/scss/dropin.scss b/addons/payment_adyen/static/src/scss/dropin.scss
deleted file mode 100644
index 4cfcfe4fb88..00000000000
--- a/addons/payment_adyen/static/src/scss/dropin.scss
+++ /dev/null
@@ -1,6 +0,0 @@
-.o_adyen_dropin {
-    [aria-hidden="true"], [aria-hidden="1"]
-    {
-        display: block !important;
-    }
-}
diff --git a/addons/sale_product_configurator/static/src/js/product_configurator_modal.js b/addons/sale_product_configurator/static/src/js/product_configurator_modal.js
index f3a87d141a4..74f79da1613 100644
--- a/addons/sale_product_configurator/static/src/js/product_configurator_modal.js
+++ b/addons/sale_product_configurator/static/src/js/product_configurator_modal.js
@@ -115,7 +115,6 @@ export const OptionalProductsModal = Dialog.extend(ServicesMixin, VariantMixin,
             if (!self.preventOpening) {
                 self.$modal.find(".modal-body").replaceWith(self.$el);
                 self.$modal.attr('open', true);
-                self.$modal.removeAttr("aria-hidden");
                 self.$modal.appendTo(self.container);
                 const modal = new Modal(self.$modal[0], {
                     focus: true,
diff --git a/addons/web/static/src/core/debug/profiling/profiling_qweb.js b/addons/web/static/src/core/debug/profiling/profiling_qweb.js
index e2cda99ba92..08e6ffb272e 100644
--- a/addons/web/static/src/core/debug/profiling/profiling_qweb.js
+++ b/addons/web/static/src/core/debug/profiling/profiling_qweb.js
@@ -135,7 +135,6 @@ export class ProfilingQwebView extends Component {
             displayIndentGuides: true,
             showGutter: true,
         });
-        this.aceEditor.renderer.$gutter.removeAttribute("aria-hidden");
         this.aceEditor.renderer.$cursorLayer.element.style.display = "none";
 
         this.aceEditor.$blockScrolling = true;
diff --git a/addons/web/static/src/legacy/js/core/dialog.js b/addons/web/static/src/legacy/js/core/dialog.js
index 823fc317632..efee6c79147 100644
--- a/addons/web/static/src/legacy/js/core/dialog.js
+++ b/addons/web/static/src/legacy/js/core/dialog.js
@@ -199,7 +199,6 @@ var Dialog = Widget.extend({
             }
             self.$modal.find(".modal-body").replaceWith(self.$el);
             self.$modal.attr('open', true);
-            self.$modal.removeAttr("aria-hidden");
             if (self.$parentNode) {
                 self.$modal.appendTo(self.$parentNode);
             }
diff --git a/addons/web/static/src/legacy/scss/ace.scss b/addons/web/static/src/legacy/scss/ace.scss
index 95adacf494e..811624f1736 100644
--- a/addons/web/static/src/legacy/scss/ace.scss
+++ b/addons/web/static/src/legacy/scss/ace.scss
@@ -1,6 +1,3 @@
-.ace_editor > .ace_gutter {
-    display: block !important; // display even with aria-hidden
-}
 .ace_editor .ace_qweb {
     color: orange !important;
 }
diff --git a/addons/web/static/src/legacy/scss/ui.scss b/addons/web/static/src/legacy/scss/ui.scss
index 44c64c48251..67ee39c6ba4 100644
--- a/addons/web/static/src/legacy/scss/ui.scss
+++ b/addons/web/static/src/legacy/scss/ui.scss
@@ -24,10 +24,6 @@
     }
 }
 
-[aria-hidden="true"], [aria-hidden="1"] {
-    display: none!important;
-}
-
 .dropdown-toggle {
     white-space: nowrap;