diff --git a/addons/web/__manifest__.py b/addons/web/__manifest__.py
index 60f19ca9a89..e5afe5e6654 100644
--- a/addons/web/__manifest__.py
+++ b/addons/web/__manifest__.py
@@ -236,8 +236,6 @@ This module provides the core of the Odoo Web Client.
             '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/systray_menu.js',
-            'web/static/src/legacy/systray_menu_item.js',
             'web/static/src/legacy/backend_utils.js',
             'web/static/src/legacy/utils.js',
             'web/static/src/legacy/web_client.js',
diff --git a/addons/web/static/src/legacy/js/components/custom_checkbox.js b/addons/web/static/src/legacy/js/components/custom_checkbox.js
deleted file mode 100644
index fee2457fbae..00000000000
--- a/addons/web/static/src/legacy/js/components/custom_checkbox.js
+++ /dev/null
@@ -1,66 +0,0 @@
-odoo.define('web.CustomCheckbox', function (require) {
-    "use strict";
-
-    const utils = require('web.utils');
-    const { LegacyComponent } = require("@web/legacy/legacy_component");
-
-    /**
-     * Custom checkbox
-     * 
-     * Component that can be used in templates to render the custom checkbox of Odoo.
-     * 
-     * <CustomCheckbox
-     *     value="boolean"
-     *     disabled="boolean"
-     *     text="'Change the label text'"
-     *     onChange="_onValueChange"
-     *     />
-     * 
-     * @extends Component
-     */
-    class CustomCheckbox extends LegacyComponent {
-        /**
-         * @param {Object} [props]
-         * @param {string | number | null} [props.id]
-         * @param {boolean} [props.value=false]
-         * @param {boolean} [props.disabled=false]
-         * @param {string} [props.text]
-         */
-        setup() {
-            this._id = `checkbox-comp-${utils.generateID()}`;
-        }
-    }
-    CustomCheckbox.defaultProps = {
-        onChange: () => {},
-    };
-    CustomCheckbox.props = {
-        id: {
-            type: [String, Number],
-            optional: 1,
-        },
-        class: {
-            type: String,
-            optional: 1,
-        },
-        disabled: {
-            type: Boolean,
-            optional: 1,
-        },
-        onChange: {
-            type: Function,
-            optional: 1,
-        },
-        value: {
-            type: Boolean,
-            optional: 1,
-        },
-        text: {
-            type: String,
-            optional: 1,
-        },
-    };
-
-    CustomCheckbox.template = 'web.CustomCheckbox';
-
-    return CustomCheckbox;
-});
diff --git a/addons/web/static/src/legacy/systray_menu.js b/addons/web/static/src/legacy/systray_menu.js
deleted file mode 100644
index 4be77b575d2..00000000000
--- a/addons/web/static/src/legacy/systray_menu.js
+++ /dev/null
@@ -1,3 +0,0 @@
-odoo.define("web.SystrayMenu", function () {
-    return { Items: [] };
-});
diff --git a/addons/web/static/src/legacy/systray_menu_item.js b/addons/web/static/src/legacy/systray_menu_item.js
deleted file mode 100644
index 7cbfe7cc8a0..00000000000
--- a/addons/web/static/src/legacy/systray_menu_item.js
+++ /dev/null
@@ -1,56 +0,0 @@
-/** @odoo-module  **/
-
-import { ComponentAdapter } from "web.OwlCompatibility";
-import * as legacySystrayMenu from "web.SystrayMenu";
-import { registry } from "../core/registry";
-import { LegacyComponent } from "@web/legacy/legacy_component";
-
-import { Component, xml } from "@odoo/owl";
-const systrayRegistry = registry.category("systray");
-
-class SystrayItemAdapter extends ComponentAdapter {
-    constructor() {
-        super(...arguments);
-        this.env = Component.env;
-    }
-}
-
-// registers the legacy systray menu items from the legacy systray registry
-// to the wowl one, but wrapped into Owl components
-const legacySystrayMenuItems = legacySystrayMenu.Items;
-const convertedItems = [];
-let id = 1;
-
-const legacySystrayItemTemplate = xml`<SystrayItemAdapter Component="Widget" />`;
-
-function addSystrayItem(Widget) {
-    const name = `_legacy_systray_item_${id++}`;
-
-    class SystrayItem extends LegacyComponent {
-        setup() {
-            this.Widget = Widget;
-        }
-    }
-    SystrayItem.template = legacySystrayItemTemplate;
-    SystrayItem.components = { SystrayItemAdapter };
-
-    systrayRegistry.add(name, { Component: SystrayItem }, { sequence: Widget.prototype.sequence });
-
-    convertedItems.push(Widget);
-}
-
-legacySystrayMenuItems.forEach(addSystrayItem);
-const push = legacySystrayMenuItems.push.bind(legacySystrayMenuItems);
-legacySystrayMenuItems.push = function (Widget) {
-    push(Widget);
-    addSystrayItem(Widget);
-};
-const splice = legacySystrayMenuItems.splice.bind(legacySystrayMenuItems);
-legacySystrayMenuItems.splice = function () {
-    splice(...arguments);
-    legacySystrayMenuItems.forEach((Widget) => {
-        if (!convertedItems.includes(Widget)) {
-            addSystrayItem(Widget);
-        }
-    });
-};
diff --git a/addons/web/static/src/legacy/xml/base.xml b/addons/web/static/src/legacy/xml/base.xml
index f6d0b22af20..25ce87cc3d2 100644
--- a/addons/web/static/src/legacy/xml/base.xml
+++ b/addons/web/static/src/legacy/xml/base.xml
@@ -80,22 +80,6 @@
     </div>
 </t>
 
-<t t-name="web.CustomCheckbox" owl="1">
-    <div t-attf-class="{{ props.text ? 'form-check' : '' }}" t-att-class="props.class">
-        <input
-            t-att-id="props.id or _id"
-            type="checkbox"
-            class="form-check-input"
-            t-att-disabled="props.disabled"
-            t-att-checked="props.value"
-            t-on-change="(ev) => props.onChange(ev.target.checked)"
-            />
-        <label t-att-for="props.id or _id" class="form-check-label">
-            <t t-esc="props.text or '&#8203;'"/>
-        </label>
-    </div>
-</t>
-
 <t t-name="web.CustomFileInput" owl="1">
     <span class="o_file_input" aria-atomic="true" t-on-uploaded="(ev) => props.onUpload(ev.detail.files)">
         <span class="o_file_input_trigger" t-on-click.prevent="() => this._onTriggerClicked()">
diff --git a/addons/web/static/tests/legacy/components/custom_checkbox_tests.js b/addons/web/static/tests/legacy/components/custom_checkbox_tests.js
deleted file mode 100644
index b9de73b1abc..00000000000
--- a/addons/web/static/tests/legacy/components/custom_checkbox_tests.js
+++ /dev/null
@@ -1,52 +0,0 @@
-odoo.define('web.custom_checkbox_tests', function (require) {
-    "use strict";
-
-    const CustomCheckbox = require('web.CustomCheckbox');
-    const testUtils = require('web.test_utils');
-
-    const { createComponent, dom: testUtilsDom } = testUtils;
-
-    QUnit.module('Components', {}, function () {
-
-        QUnit.module('CustomCheckbox');
-
-        QUnit.test('test checkbox: default values', async function(assert) {
-            assert.expect(6);
-
-            const checkbox = await createComponent(CustomCheckbox, {});
-
-            assert.containsOnce(checkbox.el, 'input');
-            assert.containsNone(checkbox.el, 'input:disabled');
-            assert.containsOnce(checkbox.el, 'label');
-
-            const input = checkbox.el.querySelector('input');
-            assert.notOk(input.checked, 'checkbox should be unchecked');
-            assert.ok(input.id.startsWith('checkbox-comp-'));
-
-            await testUtilsDom.click(checkbox.el.querySelector('label'));
-            assert.ok(input.checked, 'checkbox should be checked');
-        });
-
-        QUnit.test('test checkbox: custom values', async function(assert) {
-            assert.expect(6);
-
-            const checkbox = await createComponent(CustomCheckbox, {
-                props: {
-                    id: 'my-form-check',
-                    disabled: true,
-                    value: true,
-                    text: 'checkbox',
-                }
-            });
-
-            assert.containsOnce(checkbox.el, 'input');
-            assert.containsOnce(checkbox.el, 'input:disabled');
-            assert.containsOnce(checkbox.el, 'label');
-
-            const input = checkbox.el.querySelector('input');
-            assert.ok(input.checked, 'checkbox should be checked');
-            assert.strictEqual(input.id, 'my-form-check');
-            assert.ok(input.checked, 'checkbox should be checked');
-        });
-    });
-});