Remove some unused dependencies

[jpschorr]

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By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 80.64%. Comparing base (010602f) to head (6a25948).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #502   +/-   ##
=======================================
  Coverage   80.64%   80.64%           
=======================================
  Files          78       78           
  Lines       19157    19157           
  Branches    19157    19157           
=======================================
  Hits        15450    15450           
  Misses       3283     3283           
  Partials      424      424           

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[github-actions]

Conformance comparison report

	Base (010602f)	b888bd8	+/-
% Passing	90.35%	90.35%	0.00%
✅ Passing	5731	5731	0
❌ Failing	612	612	0
🔶 Ignored	0	0	0
Total Tests	6343	6343	0

Number passing in both: 5731

Number failing in both: 612

Number passing in Base (010602f) but now fail: 0

Number failing in Base (010602f) but now pass: 0