HPCC-9923 Activity Window Load Twice on Startup

Fixes HPCC-9923

Signed-off-by: Gordon Smith <gordon.smith@lexisnexis.com>

esp/files/scripts/ActivityWidget.js

@@ -55,7 +55,6 @@ define([
             if (this.inherited(arguments))
                 return;
 
-            this.refreshGrid();
             this._refreshActionState();
         },