diff --git a/addons/web/static/src/legacy/js/core/dialog.js b/addons/web/static/src/legacy/js/core/dialog.js
index e6cf6df2b17..3832197742e 100644
--- a/addons/web/static/src/legacy/js/core/dialog.js
+++ b/addons/web/static/src/legacy/js/core/dialog.js
@@ -459,62 +459,4 @@ Dialog.confirm = function (owner, message, options) {
     }, options)).open({shouldFocusButtons:true});
 };
 
-/**
- * Static method to open double confirmation dialog.
- *
- * @param {Widget} owner
- * @param {string} message
- * @param {Object} [options] @see Dialog.init @see Dialog.confirm
- * @param {string} [options.securityLevel="warning"] - bootstrap color
- * @param {string} [options.securityMessage="I am sure about this"]
- * @returns {Dialog} (open() is automatically called)
- */
-Dialog.safeConfirm = function (owner, message, options) {
-    var $checkbox = dom.renderCheckbox({
-        text: options && options.securityMessage || _t("I am sure about this."),
-    }).addClass('mb0');
-    var $securityCheck = $('<div/>', {
-        class: 'alert alert-' + (options && options.securityLevel || 'warning') + ' mt8 mb0',
-    }).prepend($checkbox);
-    var $content;
-    if (options && options.$content) {
-        $content = options.$content;
-        delete options.$content;
-    } else {
-        $content = $('<div>', {
-            text: message,
-        });
-    }
-    $content = $('<main/>', {role: 'alert'}).append($content, $securityCheck);
-
-    var buttons = [
-        {
-            text: _t("Ok"),
-            classes: 'btn-primary o_safe_confirm_button',
-            close: true,
-            click: options && options.confirm_callback,
-            disabled: true,
-        },
-        {
-            text: _t("Cancel"),
-            close: true,
-            click: options && options.cancel_callback
-        }
-    ];
-    var dialog = new Dialog(owner, Object.assign({
-        size: 'medium',
-        buttons: buttons,
-        $content: $content,
-        title: _t("Confirmation"),
-        onForceClose: options && (options.onForceClose || options.cancel_callback),
-    }, options));
-    dialog.opened(function () {
-        var $button = dialog.$footer.find('.o_safe_confirm_button');
-        $securityCheck.on('click', 'input[type="checkbox"]', function (ev) {
-            $button.prop('disabled', !$(ev.currentTarget).prop('checked'));
-        });
-    });
-    return dialog.open();
-};
-
 export default Dialog;