Remove ZWNJ character

Author: btecu

addon/components/bs-datetimepicker.js

@@ -11,7 +11,7 @@ export default Component.extend({
   tagName: 'div',
   classNames: ['input-group date'],
   iconClasses: ['glyphicon glyphicon-calendar'],
-  iconText: '‌',
+  iconText: '',
 
   didInsertElement() {
     this._super(...arguments);