i18n(zh-tw): remove outdated translations

[HiDeoo]

Description (required)

Following up on the Talking & Doc'ing session from 2 October 2025, this PR removes some outdated translations.

File	Days since last update
guides/deploy/cloudflare.mdx	151
guides/configuring-astro.mdx	268

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Tracked Files

File	Note
zh-tw/guides/configuring-astro.mdx	Localization removed, will be marked as missing.
zh-tw/guides/deploy/cloudflare.mdx	Localization removed, will be marked as missing.

Warnings reference

Icon	Description
🔄️	The source for this localization has been updated since the creation of this pull request, make sure all changes in the source have been applied.