*: only keep one protobuf dependency

[rleungx]

Signed-off-by: Ryan Leung rleungx@gmail.com

What problem does this PR solve?

Issue Number: Ref #5414.

What is changed and how does it work?

Check List

Tests

• Unit test

Release note

None

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• bufferflies
• disksing

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[codecov]

Codecov Report

Merging #5406 (c368773) into master (ab01355) will increase coverage by 0.01%.
The diff coverage is n/a.

❗ Current head c368773 differs from pull request most recent head eb63b26. Consider uploading reports for the commit eb63b26 to get more accurate results

@@            Coverage Diff             @@
##           master    #5406      +/-   ##
==========================================
+ Coverage   75.65%   75.67%   +0.01%     
==========================================
  Files         313      312       -1     
  Lines       31130    31069      -61     
==========================================
- Hits        23552    23511      -41     
+ Misses       5566     5551      -15     
+ Partials     2012     2007       -5     

Flag	Coverage Δ
unittests	75.67% <ø> (+0.01%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
server/schedule/filter/filters.go	91.64% <ø> (ø)
server/server.go	75.89% <ø> (+0.13%)	⬆️
pkg/errs/errs.go	75.00% <0.00%> (-25.00%)	⬇️
server/tso/local_allocator.go	62.16% <0.00%> (-13.52%)	⬇️
pkg/typeutil/conversion.go	90.47% <0.00%> (-9.53%)	⬇️
server/tso/allocator_manager.go	61.35% <0.00%> (-2.82%)	⬇️
server/tso/tso.go	70.62% <0.00%> (-2.26%)	⬇️
server/region_syncer/client.go	86.56% <0.00%> (-1.50%)	⬇️
server/election/lease.go	84.05% <0.00%> (-1.45%)	⬇️
server/tso/global_allocator.go	60.20% <0.00%> (-1.05%)	⬇️
... and 23 more

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[rleungx]

/merge

[ti-chi-bot]

@rleungx: It seems you want to merge this PR, I will help you trigger all the tests:

/run-all-tests

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the ti-community-infra/tichi repository.

[ti-chi-bot]

This pull request has been accepted and is ready to merge.

Commit hash: c368773

[ti-chi-bot]

@rleungx: Your PR was out of date, I have automatically updated it for you.

At the same time I will also trigger all tests for you:

/run-all-tests

If the CI test fails, you just re-trigger the test that failed and the bot will merge the PR for you after the CI passes.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the ti-community-infra/tichi repository.