cleanup after examples are gone

[kdaviduik]

WHY are these changes introduced?

Fixes #0000

WHAT is this pull request doing?

HOW to test your changes?

Post-merge steps

Checklist

• I've read the Contributing Guidelines
• I've considered possible cross-platform impacts (Mac, Linux, Windows)
• I've added a changeset if this PR contains user-facing or noteworthy changes
• I've added tests to cover my changes
• I've added or updated the documentation

[kdaviduik]

Warning

This pull request is not mergeable via GitHub because a downstack PR is open. Once all requirements are satisfied, merge this PR as a stack on Graphite.
Learn more

• cleanup after examples are gone #3217 👈 (View in Graphite)
• delete subscriptions example, that already had a pre-existing recipe #3216
• third-party-queries-caching example -> third-party-api recipe #3215
• partytown: example -> recipe #3214
• multipass: example -> recipe #3213
• metaobjects: example -> recipe #3212
• legacy-customer-account-flow: example -> recipe #3211
• infinite-scroll: example -> recipe #3210
• gtm: example -> recipe #3209
• express: example -> recipe #3208
• custom-cart-method: example -> recipe #3207
• b2b: example -> recipe #3206
• All changes to pre-existing recipes #3205
• All changes to skeleton template and packages/* #3218
• Migration command #3204
• whitespace-only changes to an existing changeset #3203
• main

This stack of pull requests is managed by Graphite. Learn more about stacking.

[shopify]

Oxygen deployed a preview of your kd-15 branch. Details:

Storefront	Status	Preview link	Deployment details	Last update (UTC)
Skeleton (skeleton.hydrogen.shop)	✅ Successful (Logs)	Preview deployment	Inspect deployment	September 25, 202511:59 PM

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[rbshop]

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