ext/pdo: Revome useless ext/standard header include

Author: Girgias

ext/pdo/pdo_dbh.c

@@ -24,7 +24,6 @@
 
 #include "php.h"
 #include "php_ini.h"
-#include "ext/standard/info.h"
 #include "php_pdo.h"
 #include "php_pdo_driver.h"
 #include "php_pdo_int.h"