refactor: remove datepicker

using datetime-local now https://github.com/NodeBB/NodeBB/blob/master/src/views/admin/partials/widget-settings.tpl#L14-L20

public/scss/jquery-ui.scss

@@ -1,7 +1,6 @@
 @import 'jquery-ui/themes/base/core';
 @import 'jquery-ui/themes/base/menu';
 @import 'jquery-ui/themes/base/button';
-@import 'jquery-ui/themes/base/datepicker';
 @import 'jquery-ui/themes/base/autocomplete';
 @import 'jquery-ui/themes/base/resizable';
 @import 'jquery-ui/themes/base/selectable';

public/src/admin/extend/widgets.js

@@ -7,7 +7,6 @@ define('admin/extend/widgets', [
 	'jquery-ui/widgets/sortable',
 	'jquery-ui/widgets/draggable',
 	'jquery-ui/widgets/droppable',
-	'jquery-ui/widgets/datepicker',
 ], function (bootbox, alerts) {
 	const Widgets = {};
 
@@ -74,7 +73,6 @@ define('admin/extend/widgets', [
 
 		$('#widgets .widget-area').sortable({
 			update: function (event, ui) {
-				createDatePicker(ui.item);
 				appendToggle(ui.item);
 			},
 			start: function () {
@@ -178,15 +176,6 @@ define('admin/extend/widgets', [
 		});
 	}
 
-	function createDatePicker(el) {
-		const currentYear = new Date().getFullYear();
-		el.find('.date-selector').datepicker({
-			changeMonth: true,
-			changeYear: true,
-			yearRange: currentYear + ':' + (currentYear + 100),
-		});
-	}
-
 	function appendToggle(el) {
 		if (!el.hasClass('block')) {
 			el.addClass('block').css('width', '').css('height', '')
@@ -243,7 +232,6 @@ define('admin/extend/widgets', [
 
 					widgetArea.append(populateWidget(widgetEl, widgetData.data));
 					appendToggle(widgetEl);
-					createDatePicker(widgetEl);
 				}
 			}
 

public/src/app.js

@@ -318,7 +318,6 @@ if (document.readyState === 'loading') {
 			return callback();
 		}
 		require([
-			'jquery-ui/widgets/datepicker',
 			'jquery-ui/widgets/autocomplete',
 			'jquery-ui/widgets/sortable',
 			'jquery-ui/widgets/resizable',