Delete unused constants

These constants were added by 6ed1819 but they are not used anymore.

They are undocumented which is why I've stumbled upon this.

Author: vrana

ext/pdo_pgsql/pdo_pgsql.c

@@ -179,11 +179,6 @@ PHP_METHOD(Pdo_Pgsql, setNoticeCallback)
 PHP_MINIT_FUNCTION(pdo_pgsql)
 {
 	REGISTER_PDO_CLASS_CONST_LONG("PGSQL_ATTR_DISABLE_PREPARES", PDO_PGSQL_ATTR_DISABLE_PREPARES);
-	REGISTER_PDO_CLASS_CONST_LONG("PGSQL_TRANSACTION_IDLE", (zend_long)PGSQL_TRANSACTION_IDLE);
-	REGISTER_PDO_CLASS_CONST_LONG("PGSQL_TRANSACTION_ACTIVE", (zend_long)PGSQL_TRANSACTION_ACTIVE);
-	REGISTER_PDO_CLASS_CONST_LONG("PGSQL_TRANSACTION_INTRANS", (zend_long)PGSQL_TRANSACTION_INTRANS);
-	REGISTER_PDO_CLASS_CONST_LONG("PGSQL_TRANSACTION_INERROR", (zend_long)PGSQL_TRANSACTION_INERROR);
-	REGISTER_PDO_CLASS_CONST_LONG("PGSQL_TRANSACTION_UNKNOWN", (zend_long)PGSQL_TRANSACTION_UNKNOWN);
 
 	PdoPgsql_ce = register_class_Pdo_Pgsql(pdo_dbh_ce);
 	PdoPgsql_ce->create_object = pdo_dbh_new;