Remove unused try_set_metadata

[jacinta-stacks]

While writing tests for RuntimeError variants, I was trying to figure out how to trigger specifically RuntimeError::MetadataAlreadySet. The only function that returns it is try_set_metadata, which was introduced in this pull request by @aaronb-stacks . It doesn't seem to actually be used anywhere though it is a public function. I could write a unit test for it specifically, but I am hoping to just remove it entirely.

Closes #6708

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 66.48%. Comparing base (dd1b787) to head (b386645).
⚠️ Report is 3 commits behind head on develop.

❌ Your project status has failed because the head coverage (66.48%) is below the target coverage (80.00%). You can increase the head coverage or adjust the target coverage.

Additional details and impacted files

@@             Coverage Diff              @@
##           develop    #6696       +/-   ##
============================================
+ Coverage    44.77%   66.48%   +21.70%     
============================================
  Files          577      577               
  Lines       357352   357339       -13     
============================================
+ Hits        159992   237560    +77568     
+ Misses      197360   119779    -77581     

Files with missing lines	Coverage Δ
clarity-types/src/errors/mod.rs	74.71% <ø> (+22.98%)	⬆️
clarity/src/vm/database/clarity_db.rs	79.34% <ø> (+5.45%)	⬆️

... and 449 files with indirect coverage changes

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[federico-stacks]

lgmt!

[francesco-stacks]

lgtm!

[github-actions]

This pull request has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.