Properly remove Preambulo from output yaml files

Properly remove the Preambulo field such that it does not appear in the output yaml file. This reverts changes from !83 (merged) as they are not needed anymore (I was too hasty with the last MR, the preambulo configuration interface was removed but a Preambulo field with an empty list still appeared in the output dtt config yaml files). The preambulo interface is now deleted right as the tuple tools are added rather than filtered out when they are configured.

This is related to https://gitlab.cern.ch/lhcb-dpa/wp6-analysis-preservation-and-open-data/wp6-apandod/-/issues/42.