Reduce test noise in cross Oracle client <-> server version testing.

This change is already in PHP 5.6+

ext/oci8/tests/lob_015.phpt

@@ -48,7 +48,7 @@ Warning: oci_bind_by_name() expects at least 3 parameters, 2 given in %s on line
 
 Warning: oci_bind_by_name() expects at least 3 parameters, 1 given in %s on line %d
 
-Warning: oci_execute(): ORA-00932: %s NUMBER %s BLOB in %s on line %d
+Warning: oci_execute(): ORA-00932: %s on line %d
 object(OCI-Lob)#%d (1) {
   ["descriptor"]=>
   resource(%d) of type (oci8 descriptor)