system-variables: optimize the persist info

[qiancai]

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What is the related PR or file link(s)?

• This PR is translated from: system-variables: optimize the persist info docs-cn#18693
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• Delete files
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[lilin90]

/lgtm

[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-09-23 09:26:45.913271272 +0000 UTC m=+1471675.653695211: ☑️ agreed by lilin90.

[qiancai]

/approve

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: qiancai

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[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-8.1: #18988.

[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-8.2: #18989.

[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-8.3: #18990.