Merge pull request #15657 from demeritcowboy/pledge-search-backport

#1348 - pledge search not working backport of 15656

CRM/Pledge/Form/Search.php

@@ -396,13 +396,6 @@ class CRM_Pledge_Form_Search extends CRM_Core_Form_Search {
     }
   }
 
-  /**
-   * @return null
-   */
-  public function getFormValues() {
-    return NULL;
-  }
-
   /**
    * Return a descriptive name for the page, used in wizard header
    *