[server] Remove legacy configuration

[geropl]

Fixes #4650.

Validate changes

1. see that server starts
2. search for process.env in components/**/*.ts and verify that all places left are independent of the changes made here
3. compare old and new config

• copy config from logs as new.json
• create another branch from main, wait until the preview env is deployed, and copy the field "new config" from the logs and save as old.json
• clean both files with 'replace \n -> \n' and 'replace \" -> "' followed by cat new.json | jq -S > new resp.
• compare new and old
  • note that all changes are because of either:
  • different output format
  • additions because we now print logs unfiltered

[geropl]

@laushinka @jankeromnes It would be awesome if one of you found time to review this until tomorrow morning. This is quite likely to create conflicts (again).

[svenefftinge]

LGTM

[roboquat]

LGTM label has been added.

Git tree hash: 1d69e6ebf55c254addc854595781def2edca17a7

[roboquat]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: svenefftinge

Associated issue: #4650

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