Remove unnecessary empty checks from willFilterPage()

Summary: Fixes T3600. These checks are obsolete after D6512.

Test Plan: Syntax / static / inspection.

Reviewers: btrahan

Reviewed By: btrahan

CC: aran

Maniphest Tasks: T3600

Differential Revision: https://secure.phabricator.com/D6563

src/applications/tokens/query/PhabricatorTokenReceiverQuery.php

@@ -19,10 +19,6 @@ final class PhabricatorTokenReceiverQuery
   }
 
   public function willFilterPage(array $phids) {
-    if (!$phids) {
-      return array();
-    }
-
     $objects = id(new PhabricatorObjectHandleData($phids))
       ->setViewer($this->getViewer())
       ->loadObjects();