I have already done a preliminary review for you, and I hope to help you do a better job.

Based on the pull request title and description, it seems that this PR is intended to revert a previous fix that was implemented to work around a problem with building Tikv on AMD64 architecture. The diff shows that the changes were made to the check-tiup.sh script, where the part that checks the git_sha of Tikv was modified to remove the workaround.

It's not clear from the pull request why this fix is being reverted. Therefore, it's important to ask the author for more information on why the change is being made and what issues were encountered that led to this decision.

If reverting the fix is necessary, it's important to consider the potential problems that might arise from this. Specifically, if the problem with building Tikv on AMD64 is not resolved, then this could lead to build failures or other issues down the line.

One suggestion to address this would be to re-implement the workaround in a way that doesn't cause issues, or to investigate the root cause of the problem and address it directly. Additionally, it's important to thoroughly test the changes to ensure that they don't cause any issues in the build process.

/approve

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[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: wuhuizuo

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