add limit to import into

[D3Hunter]

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• This PR is translated from:add limit to import into docs-cn#18603
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• Delete files
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[lilin90]

/lgtm

[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-09-10 12:22:38.855248596 +0000 UTC m=+359028.595672528: ☑️ agreed by hfxsd.
• 2024-09-11 02:18:31.171795494 +0000 UTC m=+409180.912219446: ☑️ agreed by lilin90.

[hfxsd]

/approve

[ti-chi-bot]

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[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-7.5: #18878.

[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-8.1: #18879.