// Don't show useless link to people who cannot hide revisions
$canHide = $user->isAllowed( 'deleterevision' );
if( $canHide || ($rev->getVisibility() && $user->isAllowed('deletedhistory')) ) {
// Don't show useless link to people who cannot hide revisions
$canHide = $user->isAllowed( 'deleterevision' );
if( $canHide || ($rev->getVisibility() && $user->isAllowed('deletedhistory')) ) {