Removing erroneous permissions (#5828)

## What are you changing in this pull request and why?

Removes permissions that were erroneously placed on the self-service
table

## Checklist
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Adding or removing pages (delete if not applicable):
- [ ] Add/remove page in `website/sidebars.js`
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- [ ] Add an entry for deleted pages in `website/vercel.json`
- [ ] Run link testing locally with `npm run build` to update the links
that point to deleted pages

website/snippets/_self-service-permissions-table.md

@@ -27,10 +27,8 @@ Permissions:
 | Billing                 |   W   |        |           |
 | Groups                  |   W   |   R    |    R      |
 | Invitations             |   W   |   W    |    R      |
-| IP restrictions         |   W   |        |           |
 | Licenses                |   W   |   R    |           |
 | Members                 |   W   |   R    |    R      |
-| Private Link            |   W   |   R    |    R      |
 | Project (create)        |   W   |   W    |           |
 | Public models           |   R   |   R    |    R      |
 | Service tokens          |   W   |        |           |