Cleanup after migration from S3 select

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 39.12%. Comparing base (2eb3cfc) to head (6e08d55). Report is 1 commits behind head on master.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #4229 +/- ## ========================================== - Coverage 39.21% 39.12% -0.09% ========================================== Files 780 775 -5 Lines 35505 35069 -436 Branches 5092 5092 ========================================== - Hits 13923 13722 -201 + Misses 21016 20781 -235 Partials 566 566 ``` | [Flag](https://app.codecov.io/gh/quiltdata/quilt/pull/4229/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=quiltdata) | Coverage Δ | | |---|---|---| | [api-python](https://app.codecov.io/gh/quiltdata/quilt/pull/4229/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=quiltdata) | `91.09% <ø> (ø)` | | | [catalog](https://app.codecov.io/gh/quiltdata/quilt/pull/4229/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=quiltdata) | `14.54% <ø> (ø)` | | | [lambda](https://app.codecov.io/gh/quiltdata/quilt/pull/4229/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=quiltdata) | `92.02% <ø> (+4.27%)` | :arrow_up: | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=quiltdata#carryforward-flags-in-the-pull-request-comment) to find out more.

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