fix(js): Delete hub occurrences

[s1gr1d]

DESCRIBE YOUR PR

There is no hub anymore in JS, only clients.

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[vercel]

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Name	Status	Preview	Comments	Updated (UTC)
changelog	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Aug 14, 2024 8:27am
sentry-docs	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Aug 14, 2024 8:27am

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[lizokm]

Thanks for updating!

[codecov]

Bundle Report

Changes will decrease total bundle size by 15 bytes ⬇️

Bundle name	Size	Change
sentry-docs-server	8.24MB	6 bytes ⬇️
sentry-docs-edge-server	254.16kB	3 bytes ⬇️
sentry-docs-client	6.25MB	6 bytes ⬇️