Revert "Increase backup wait time and delete timeouts in nod…

[isegall-da]

…e-backup (#3662)"

This reverts commit 925dcf9.
I don't think this actually works, probably some bash shenanigans... This was looping forever until I manually killed it: https://app.circleci.com/pipelines/github/DACH-NY/canton-network-internal/48725/workflows/d5c250b8-ad53-480e-9a2d-480bf598b434/jobs/265826/parallel-runs/2?filterBy=ALL

I also don't think it's really required or helpful, the backup was not slow, it was failing, so waiting for longer doesn't actually help us. Sorry for misleading you...

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[OriolMunoz-da]

Thanks