Revert "cluster: handle region after report split (#6867)"

[rleungx]

This reverts commit a997316.

What problem does this PR solve?

Issue Number: Close #7133

What is changed and how does it work?

This PR reverts #6867 since it will block CI of other repo, after we fix the problem, we will review that commit again.

Check List

Tests

• Unit test

Release note

None.

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• HuSharp
• bufferflies

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[codecov]

Codecov Report

Merging #7134 (1628bed) into master (e94b4e4) will decrease coverage by 0.13%.
The diff coverage is 76.19%.

❗ Current head 1628bed differs from pull request most recent head 4b15a35. Consider uploading reports for the commit 4b15a35 to get more accurate results

@@            Coverage Diff             @@
##           master    #7134      +/-   ##
==========================================
- Coverage   74.56%   74.44%   -0.13%     
==========================================
  Files         440      440              
  Lines       47262    47217      -45     
==========================================
- Hits        35243    35150      -93     
- Misses       8949     8981      +32     
- Partials     3070     3086      +16     

Flag	Coverage Δ
unittests	74.44% <76.19%> (-0.13%)	⬇️

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

[wuhuizuo]

/run-issue-triage

[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

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[ti-chi-bot]

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

Commit hash: 1628bed

[wuhuizuo]

/run-check-issue-triage-complete

[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

You only need to trigger /merge once, and 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.

If you have any questions about the PR merge process, please refer to pr process.

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: 4b15a35