Function found_rows should return null

adminer/drivers/mssql.inc.php

@@ -491,7 +491,6 @@ WHERE OBJECT_NAME(i.object_id) = " . q($table)
 	}
 	
 	function found_rows($table_status, $where) {
-		return false;
 	}
 	
 	function foreign_keys($table) {

adminer/drivers/oracle.inc.php

@@ -276,7 +276,6 @@ ORDER BY uc.constraint_type, uic.column_position", $connection2) as $row) {
 	}
 	
 	function found_rows($table_status, $where) {
-		return false;
 	}
 	
 	function alter_table($table, $name, $fields, $foreign, $comment, $engine, $collation, $auto_increment, $partitioning) {

adminer/drivers/sqlite.inc.php

@@ -504,7 +504,6 @@ if (isset($_GET["sqlite"]) || isset($_GET["sqlite2"])) {
 	}
 	
 	function found_rows($table_status, $where) {
-		return false;
 	}
 	
 	function types() {