cdc: remove maxwell protocol, add simple protocol (#18030) (#18171)

[ti-chi-bot]

This is an automated cherry-pick of #18171

This is an automated cherry-pick of #18030

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cdc: remove maxwell protocol, add simple protocol

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[Oreoxmt]

/approve

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[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-6.5: #18182.

[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-7.1: #18183.