Revert "WIP Router V6 migration: update Link component (#36285)"

Created by: mrnugget

This reverts commit 4cda7bf0b453d726bd9abf4205ab852e00711cd8 introduced in #36285.

It breaks the new reference panel on sourcegraph.com

Test plan

• Noah + Chris confirmed that it fixes it locally

App preview:

• Web
• Storybook

Check out the client app preview documentation to learn more.