refactor(ci): delete the useless go.mod file in tools/check folder

[wuhuizuo]

We can just use go run to run the ci linter.

Signed-off-by: wuhuizuo wuhuizuo@126.com

What problem does this PR solve?

Issue Number: close #1304

What is changed and how it works?

Check List

Tests

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

Code changes

• Has exported function/method change
• Has exported variable/fields change
• Has interface methods change
• Has persistent data change

Side effects

• Possible performance regression
• Increased code complexity
• Breaking backward compatibility

Related changes

• Need to cherry-pick to the release branch
• Need to update the documentation
• Need to update the tidb-ansible repository
• Need to be included in the release note

Release note

None

[wuhuizuo]

/label release-note-none

[ti-chi-bot]

@wuhuizuo: The label(s) release-note-none cannot be applied. These labels are supported: contribution, duplicate, feature-request, first-time-contributor, invalid, need-update-ansible, need-update-docs, needs-cherry-pick-release-5.4, needs-cherry-pick-release-6.1, needs-cherry-pick-release-6.5, needs-cherry-pick-release-7.1, needs-cherry-pick-release-7.5, needs-cherry-pick-release-8.1, p0, p1, p2, question, wontfix.

In response to this:

/label release-note-none

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[wuhuizuo]

/release-note none

[wuhuizuo]

/cc Benjamin2037

[wuhuizuo]

/run-integration-test

[Benjamin2037]

LGTM

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: Benjamin2037, nongfushanquan

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-06-12 07:30:57.89179182 +0000 UTC m=+536211.945103745: ☑️ agreed by Benjamin2037.
• 2024-06-12 07:48:01.511467553 +0000 UTC m=+537235.564779474: ☑️ agreed by nongfushanquan.