Remove old davinci configurable and related tests

Update all the scripts to the new DaVinci configuration. Removing old DaVinci Configuration.py and the related option files and qmtests not used with the new Configuration. Removing also the following qmtests:

• packing.qms/test_dstunpacking_upgrade.qmt: it will be replaced by a new test with !573 (merged).
• davinci.qms/gaudipython_algs.qmt: due to some overlaps with the other qmtests
• io.qms/test_write_dst.qmt: it will be replaced in a future dedicated qmtest

Closes https://gitlab.cern.ch/lhcb-dpa/project/-/issues/137.

added Configuration DPA-WP3 labels

changed title from Draft: update qmtest to the new DaVinci configuration to Draft: remove old davinci configurable

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• 9486a6cc - remove old qmtests and options

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changed title from Draft: remove old davinci configurable to Draft: remove old davinci configurable and related tests

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• fb9f7f2b - updating old qmtest

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• 87997d8e - Fixed formatting

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@dfazzini, I hardly ever find it a good idea to broaden the scope of MRs. In this instance you are doing quite a bit more than getting rid of the old Configurable. In particular, you are also modifying various scripts in DaVinciExamples, which are perfectly valid scripts based on the simplest PyConf "structures". We can discuss if updates are needed there but please do not edit those files in this removal MR.