chore: delete useless files

[wuhuizuo]

What problem does this PR solve?

Issue Number: close #526

Problem Summary:

What is changed and how it works?

Proposal: xxx

What's Changed:

How it Works:

Check List

Tests

• [ ] Unit test
• [ ] Integration test
• [ ] Manual test (add detailed scripts or steps below)
• [ ] No code

Side effects

• [ ] Performance regression: Consumes more CPU
• [ ] Performance regression: Consumes more Memory
• [ ] Breaking backward compatibility

Documentation

• [ ] Affects user behaviors
• [ ] Contains syntax changes
• [ ] Contains variable changes
• [ ] Contains experimental features
• [ ] Changes MySQL compatibility

Release note

Please add a release note, or a 'None' if it is not needed.

[mini-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• zuo-bot-1

To complete the pull request process, please ask the reviewers in the list to review by filling /cc @reviewer in the comment. After your PR has acquired the required number of LGTMs, you can assign this pull request to the committer in the list by filling /assign @committer in the comment to help you merge this pull request.

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[wuhuizuo]

/affects 5.1

[wuhuizuo]

/check-issue-triage-complete

[wuhuizuo]

/cc zuo-bot-1

[wuhuizuo]

/merge

[mini-bot]

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

Commit hash: 53a766b9582ae96feed5ec7a9caf654e48b7d206

[wuhuizuo]

/cherry-picker-invite

[wuhuizuo]

/cherry-pick-invite

[mini-bot]

@wuhuizuo: Your PR was out of date, I have automatically updated it for you.

Instructions for interacting with me using PR comments are available [here](https://prow.tidb.io/command-help). If you have questions or suggestions related to my behavior, please file an issue against the [ti-community-infra/tichi](https://github.com/ti-community-infra/tichi/issues/new?title=Prow%20issue:) repository.

[ghost]

@wuhuizuo: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
prow_debug	ac789c9708d4e229762880c70fabbf464702fa1f	link	true	/test prow_debug

Full PR test history.

Instructions for interacting with me using PR comments are available [here](https://git.k8s.io/community/contributors/guide/pull-requests.md). If you have questions or suggestions related to my behavior, please file an issue against the [kubernetes/test-infra](https://github.com/kubernetes/test-infra/issues/new?title=Prow%20issue:) repository. I understand the commands that are listed [here](https://go.k8s.io/bot-commands).

[wuhuizuo]

/test all

[ti-chi-bot-dev[bot]]

@wuhuizuo: No presubmit jobs available for ti-community-infra/test-dev@master

In response to [this](https://github.com/ti-community-infra/test-dev/pull/527#issuecomment-1362479026): >/test all Instructions for interacting with me using PR comments are available [here](https://git.k8s.io/community/contributors/guide/pull-requests.md). If you have questions or suggestions related to my behavior, please file an issue against the [kubernetes/test-infra](https://github.com/kubernetes/test-infra/issues/new?title=Prow%20issue:) repository.

[wuhuizuo]

/retest

[wuhuizuo]

/merge

[ghost]

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

Commit hash: 817391778f126bd1769044911a8074f2ec3658ea

[wuhuizuo]

/cherry-pick-invite

[wuhuizuo]

/cherry-pick-invite

[wuhuizuo]

/merge

[ghost]

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

Instructions for interacting with me using PR comments are available [here](https://prow.tidb.net/command-help). If you have questions or suggestions related to my behavior, please file an issue against the [ti-community-infra/tichi](https://github.com/ti-community-infra/tichi/issues/new?title=Prow%20issue:) repository.

[ti-chi-bot-dev[bot]]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: wuhuizuo, zuo-bot-1

The full list of commands accepted by this bot can be found here.

Needs approval from an approver in each of these files: Approvers can indicate their approval by writing `/approve` in a comment Approvers can cancel approval by writing `/approve cancel` in a comment

[ti-chi-bot-dev[bot]]

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

Instructions for interacting with me using PR comments are available [here](https://prow.tidb.net/command-help). If you have questions or suggestions related to my behavior, please file an issue against the [ti-community-infra/tichi](https://github.com/ti-community-infra/tichi/issues/new?title=Prow%20issue:) repository.