/**
  * Deletes reports of marked posts.
  */
 public function removeReports()
 {
     // get threadids
     $threadIDs = PostEditor::getThreadIDs($this->postIDs);
     // get boards
     list($boards, $boardIDs) = ThreadEditor::getBoards($threadIDs);
     // check permissions
     foreach ($boards as $board) {
         $board->checkModeratorPermission('canEditPost');
     }
     PostEditor::removeReportData($this->postIDs);
     self::unmarkAll();
     HeaderUtil::redirect($this->url);
     exit;
 }