searchTasks: remove result=FALSE (causes blank screen)

civiexportexcel.php

@@ -130,7 +130,6 @@ function civiexportexcel_civicrm_searchTasks($objectType, &$tasks) {
     $tasks[] = [
       'title' => E::ts('Contact - Export to Excel'),
       'class' => 'CRM_CiviExportExcel_Form_Task_Export',
-      'result' => FALSE,
     ];
   }
 }