use system adodb instead of bundled adodb-4.65

diff -ur phpPgAdmin-4.0.1/classes/database/ADODB_base.php phpPgAdmin-4.0.1.adodb/classes/database/ADODB_base.php
--- phpPgAdmin-4.0.1/classes/database/ADODB_base.php	2005-05-25 07:33:23.000000000 +0300
+++ phpPgAdmin-4.0.1.adodb/classes/database/ADODB_base.php	2006-03-12 19:41:11.000000000 +0200
@@ -7,7 +7,7 @@
  */
 
 include_once('./libraries/errorhandler.inc.php');
-include_once('./libraries/adodb/adodb.inc.php');
+include_once('/usr/share/php/adodb/adodb.inc.php');
 
 class ADODB_base {