Remove ZetaSQL

[Abacn]

Fix#34423

Needed for #26403. An attempt of upgrade vendored Calcite (#35588) shows multiple zetasql tests breaking: https://github.com/apache/beam/runs/46517620722

Per #34423

Continued support for ZetaSQL component involving significant burdens,
like conflict with other Beam dependencies, supported Java versions, etc, or

We need to remove ZetaSQL components as we're not going to fix these breakages given the deprecation status. Merge after 2.67 release cut according to the plan.

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R: @shunping for label python.
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[damccorm]

Thanks - this LGTM. Before merging, please send a message to dev@ and user@ calling out the change.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 56.54%. Comparing base (da885fc) to head (93c0f1b).
⚠️ Report is 29 commits behind head on master.

Additional details and impacted files

@@ Coverage Diff @@## master #35662 +/- ##
=========================================
Coverage 56.54% 56.54% Complexity 3381 3381 =========================================
Files 1204 1203 -1 Lines 183949 183895 -54 Branches 3490 3490 =========================================
- Hits 104010 103988 -22 + Misses 76613 76582 -31 + Partials 3326 3325 -1 

Flag	Coverage Δ
go	28.24% <ø> (+0.01%)	⬆️

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[Abacn]

Thank you @damccorm, sent https://lists.apache.org/thread/j5n9qz628wjmr0f3p28db6z1zbjdznbk and https://lists.apache.org/thread/qv5qtss8slrzz7zg25y60ptojwfdbwg7