diff --git a/addons/mrp_subcontracting/__manifest__.py b/addons/mrp_subcontracting/__manifest__.py
index 4a847ac215e..22412073d53 100644
--- a/addons/mrp_subcontracting/__manifest__.py
+++ b/addons/mrp_subcontracting/__manifest__.py
@@ -179,7 +179,6 @@
             'web/static/src/legacy/backend_utils.js',
             'web/static/src/legacy/utils.js',
             'web/static/src/legacy/js/core/dates.js',
-            'web/static/src/legacy/js/core/misc.js',
             'web/static/src/legacy/js/services/session.js',
             'web/static/src/legacy/js/widgets/date_picker.js',
             'web/static/src/legacy/js/env.js',
diff --git a/addons/project/__manifest__.py b/addons/project/__manifest__.py
index 3de25979b0e..b6c8f1ac0c0 100644
--- a/addons/project/__manifest__.py
+++ b/addons/project/__manifest__.py
@@ -230,7 +230,6 @@
             'web/static/src/legacy/backend_utils.js',
             'web/static/src/legacy/utils.js',
             'web/static/src/legacy/js/core/dates.js',
-            'web/static/src/legacy/js/core/misc.js',
             'web/static/src/legacy/js/services/session.js',
             'web/static/src/legacy/js/widgets/date_picker.js',
             'web/static/src/legacy/js/env.js',
diff --git a/addons/web/__manifest__.py b/addons/web/__manifest__.py
index 0ac54b77e6e..2da5a94b0b8 100644
--- a/addons/web/__manifest__.py
+++ b/addons/web/__manifest__.py
@@ -170,7 +170,6 @@ This module provides the core of the Odoo Web Client.
             'web/static/src/legacy/backend_utils.js',
             'web/static/src/legacy/utils.js',
             'web/static/src/legacy/js/core/dates.js',
-            'web/static/src/legacy/js/core/misc.js',
             'web/static/src/legacy/js/services/session.js',
             'web/static/src/legacy/js/widgets/date_picker.js',
             'web/static/src/legacy/js/env.js',
@@ -307,7 +306,6 @@ This module provides the core of the Odoo Web Client.
 
             'web/static/src/legacy/utils.js',
             'web/static/src/legacy/js/core/dates.js',
-            'web/static/src/legacy/js/core/misc.js',
             'web/static/src/legacy/js/owl_compatibility.js',
             'web/static/src/legacy/js/services/session.js',
             'web/static/src/legacy/js/public/public_env.js',
diff --git a/addons/web/static/src/legacy/js/core/misc.js b/addons/web/static/src/legacy/js/core/misc.js
deleted file mode 100644
index c2ef65dbf43..00000000000
--- a/addons/web/static/src/legacy/js/core/misc.js
+++ /dev/null
@@ -1,98 +0,0 @@
-/** @odoo-module **/
-
-import { _t } from "@web/core/l10n/translation";
-import Widget from "@web/legacy/js/core/widget";
-
-var messages_by_seconds = function() {
-    return [
-        [0, _t("Loading...")],
-        [20, _t("Still loading...")],
-        [60, _t("Still loading...<br />Please be patient.")],
-        [120, _t("Don't leave yet,<br />it's still loading...")],
-        [300, _t("You may not believe it,<br />but the application is actually loading...")],
-        [420, _t("Take a minute to get a coffee,<br />because it's loading...")],
-        [3600, _t("Maybe you should consider reloading the application by pressing F5...")]
-    ];
-};
-
-var Throbber = Widget.extend({
-    template: "Throbber",
-    start: function() {
-        this.start_time = new Date().getTime();
-        this.act_message();
-    },
-    act_message: function() {
-        var self = this;
-        setTimeout(function() {
-            if (self.isDestroyed())
-                return;
-            var seconds = (new Date().getTime() - self.start_time) / 1000;
-            var mes;
-            messages_by_seconds().forEach((el) => {
-                if (seconds >= el[0])
-                    mes = el[1];
-            });
-            self.$(".oe_throbber_message").html(mes);
-            self.act_message();
-        }, 1000);
-    },
-});
-
-/** Setup blockui */
-if ($.blockUI) {
-    $.blockUI.defaults.baseZ = 1100;
-    $.blockUI.defaults.message = '<div class="openerp oe_blockui_spin_container" style="background-color: transparent;">';
-    $.blockUI.defaults.css.border = '0';
-    $.blockUI.defaults.css["background-color"] = '';
-}
-
-
-/**
- * Remove the "accesskey" attributes to avoid the use of the access keys
- * while the blockUI is enable.
- */
-
-function blockAccessKeys() {
-    var elementWithAccessKey = [];
-    elementWithAccessKey = document.querySelectorAll('[accesskey]');
-    elementWithAccessKey.forEach((elem) => {
-        elem.setAttribute("data-accesskey",elem.getAttribute('accesskey'));
-        elem.removeAttribute('accesskey');
-    });
-}
-
-function unblockAccessKeys() {
-    var elementWithDataAccessKey = [];
-    elementWithDataAccessKey = document.querySelectorAll('[data-accesskey]');
-    elementWithDataAccessKey.forEach((elem) => {
-        elem.setAttribute('accesskey', elem.getAttribute('data-accesskey'));
-        elem.removeAttribute('data-accesskey');
-    });
-}
-
-var throbbers = [];
-
-export function blockUI() {
-    var tmp = $.blockUI.apply($, arguments);
-    var throbber = new Throbber();
-    throbbers.push(throbber);
-    throbber.appendTo($(".oe_blockui_spin_container"));
-    $(document.body).addClass('o_ui_blocked');
-    blockAccessKeys();
-    return tmp;
-}
-
-export function unblockUI() {
-    throbbers.forEach((throbber) => {
-        throbber.destroy();
-    });
-    throbbers = [];
-    $(document.body).removeClass('o_ui_blocked');
-    unblockAccessKeys();
-    return $.unblockUI.apply($, arguments);
-}
-
-export default {
-    blockUI: blockUI,
-    unblockUI: unblockUI,
-};
diff --git a/addons/web/static/src/legacy/js/env.js b/addons/web/static/src/legacy/js/env.js
index 439fe70834a..459d9262d0e 100644
--- a/addons/web/static/src/legacy/js/env.js
+++ b/addons/web/static/src/legacy/js/env.js
@@ -5,9 +5,5 @@
  */
 
 import commonEnv from '@web/legacy/js/common_env';
-import { blockUI, unblockUI } from "@web/legacy/js/core/misc";
 
-const env = commonEnv;
-env.services = Object.assign(env.services, { blockUI, unblockUI });
-
-export default env;
+export default commonEnv;