breaking: remove builder.createEntries

[teemingc]

This PR removes the deprecated builder.createEntries API.

Requires #15506 to be merged first to remove references to it in the adapters

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[changeset-bot]

🦋 Changeset detected

Latest commit: b498d09

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@sveltejs/kit	Major

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[svelte-docs-bot]

Preview: https://svelte-dev-git-preview-kit-15509-svelte.vercel.app/

[benmccann]

Looks like pnpm check is failing on this one

[teemingc]

The type check issue should be fixed now that #15506 has been merged

[Rich-Harris]

are we working on a sveltekit 2 -> 3 migration guide anywhere? would be good to add these sorts of things to it

[benmccann]

We haven't, but we are tagging all breaking changes as such in the changelog, so it should be easy enough to create a writeup as we know we're not losing track of things