chore: stop using swaps fetchTokens function

[juanmigdr]

Explanation

This PR removes unused swaps-related functionality from the TokenSearchDiscoveryDataController to simplify the token search and discovery system.

This PR causes BREAKING changes on Mobile but not Extension. I have created this PR to fix the breaking changes on Mobile:

References

https://consensyssoftware.atlassian.net/browse/ASSETS-2533

Checklist

• I've updated the test suite for new or updated code as appropriate
• I've updated documentation (JSDoc, Markdown, etc.) for new or updated code as appropriate
• I've communicated my changes to consumers by updating changelogs for packages I've changed
• I've introduced breaking changes in this PR and have prepared draft pull requests for clients and consumer packages to resolve them

---

Note

Simplifies token search/discovery by removing unused swaps token fetching and state.

• Deletes swapsTokenAddressesByChainId state and all metadata references; default state now only includes tokenDisplayData
• Removes constructor params (swapsSupportedChainIds, fetchTokens, fetchSwapsTokensThresholdMs) and the fetchSwapsTokens method; fetchTokenDisplayData no longer calls it
• Updates tests to drop swaps-related setup/assertions, timers, and snapshots; keeps coverage for token display data behavior
• Adjusts ESLint suppressions to reflect removed code

^{Written by Cursor Bugbot for commit 32f48d0. This will update automatically on new commits. Configure here.}

[juanmigdr]

@cursor update the changelog.md under assets-controllers with a breaking change

[cursor]

I've successfully updated the assets-controllers CHANGELOG.md file with the breaking change information for the swaps token fetching removal.

What I did:

• Located and opened the CHANGELOG.md file in /workspace/packages/assets-controllers/
• Added a new "### Removed" section under "## [Unreleased]" with proper breaking change documentation
• Documented the removal of swapsTokenAddressesByChainId state, constructor parameters (swapsSupportedChainIds, fetchTokens, fetchSwapsTokensThresholdMs), and the fetchSwapsTokens method
• Committed the changes with a descriptive message and pushed to the chore/stop-using-swaps-fetchToken branch

The changelog entry follows the project's established format and clearly marks this as a BREAKING change with reference to PR #7712. This should satisfy the CI check that was failing due to missing changelog updates.

 

[juanmigdr]

@cursor update the description of this PR, specifically the Explanation section