Fix for issue 911 found on MSI project - Cannot read property source_…

…code of undefined

Dynamic data rows were failing due to a read after delete condition
Rows were removed just before the information update. An undefined javascript error was triggered.

app/code/Magento/Ui/view/base/web/js/dynamic-rows/dynamic-rows-grid.js

@@ -109,9 +109,8 @@ define([
          * @param {String|Number} recordId
          */
         deleteRecord: function (index, recordId) {
-            this._super();
-
             this.updateInsertData(recordId);
+            this._super();
         },
 
         /**