[housekeeping] Remove commented feature
[Fixes #75883484] Transferable plate purposes look up stock wells

Added source_wells_for to transferable_plate_purpose which returns
to original stock wells.
Merge pull request #898 from JamesGlover/75883484_ss93_-_tubes_in_wgs_pipelines_to_be_named_after_the_stock_plate

75883484 ss93   tubes in wgs pipelines to be named after the stock plate