sink(ticdc): Revert changes related to the conflict detector (#10897)

[ti-chi-bot]

This is an automated cherry-pick of #10897

What problem does this PR solve?

Issue Number: ref #10896

What is changed and how it works?

Check List

Tests

• No code

Questions

Will it cause performance regression or break compatibility?

Do you need to update user documentation, design documentation or monitoring documentation?

Release note

None

[ti-chi-bot]

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[ti-chi-bot]

@ti-chi-bot: 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
pull-dm-integration-test	41ee557	link	true	/test dm-integration-test

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[CharlesCheung96]

Cherry-pick in #10923