remove local jquery file and update to latest npm version

src/svgcanvas/utilities.js

@@ -1,4 +1,4 @@
-/* globals jQuery */
+/* globals $ */
 /**
  * Miscellaneous utilities.
  * @module utilities
@@ -7,7 +7,6 @@
  * @copyright 2010 Alexis Deveria, 2010 Jeff Schiller
  */
 
-import jQueryPluginSVG from './jQuery.attr.js'; // Needed for SVG attribute setting and array form with `attr`
 import { NS } from '../common/namespaces.js';
 import { getTransformList } from './svgtransformlist.js';
 import { setUnitAttr, getTypeMap } from '../common/units.js';
@@ -20,9 +19,6 @@ import {
 } from '../common/browser.js';
 import { getClosest } from '../editor/components/jgraduate/Util.js';
 
-// Constants
-const $ = jQueryPluginSVG(jQuery);
-
 // String used to encode base64.
 const KEYSTR = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=';