docs: fix duplicate "scroll" parameter in Link component documentation (#74820)
### What
This PR fixes a duplicate description of the `scroll` parameter in the
[Link component API
documentation](https://nextjs.org/docs/pages/api-reference/components/link#disable-scrolling-to-the-top-of-the-page).
### Why
The section describing the `scroll` parameter included duplicated
information, which might confuse readers. Removing the redundancy
improves clarity and ensures the documentation remains concise.
### Changes
- Removed the duplicate `scroll` parameter description in the `Link`
component documentation.
Co-authored-by: loopy-lim <loopy@jnu.ac.kr>
Co-authored-by: Sam Ko <sam@vercel.com>