cloud: remove desc about dumpling and lightning

[ran-huang]

What is changed, added or deleted? (Required)

fix a wrong description.
The same as #13732

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• Delete files
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[ti-chi-bot]

[REVIEW NOTIFICATION]

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• hfxsd

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[ran-huang]

/merge

[ti-chi-bot]

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

Commit hash: 8da8350