fix on tests after update on jsdom

frontend-js/src/test/js/Functions-test.js

@@ -150,12 +150,8 @@ describe('functions', function() {
 
   it('getPosition', function() {
     var div = document.createElement('div');
-    div.offsetLeft = 0;
     div.scrollLeft = 0;
-    div.clientLeft = 0;
-    div.offsetTop = 0;
     div.scrollTop = 0;
-    div.clientTop = 0;
     var pos = functions.getPosition(div);
     assert.equal(0, pos.x);
     assert.equal(0, pos.y);