As a rule a CAA examiner will want to see the NDB hold and approach. The issue is not that carriage of a transponder is no longer mandatory providing you can meet the enroute and approach requirements it's that there are very few places that have an approach that does not involve an NDB. Even the GPS approaches have an NDB in them. This means if an NDB is part of the approach it must be fitted and used and if its fitted the examiner will want to see the NDB holds and approaches.
You also have to remember that the CAA only test from specific airfields and I don't know any of those or the test route airfields that do not have an NDB alternate.
As has been said many times, you are required to meet the current EASA test standards in terms of flying and knowledge (which will now be orally tested) and that means following the established process.