(bulk) delete datasource

Hi,

We are cleaning up our BW system en deleting obsolote (3.X) datasources.

When I delete in our development system, everything (dependant stuff also, which is fine) gets deleted.

After transporting it to the production system, everything is also deleted over there EXCEPT the datasource itself. How can I get this datasource deleted and is there a way to delete datasources in bulk.

Many thanks in advance

Eddy