[Docs]: Patterns page under Community assets is outdated

[ljcarot]

Acceptance criteria

• Remove from the left hand nav. These pages though could still be searchable on the site for now until we figure out where else to place the content or if or when we need to update it. It just will no longer be present in the left hand nav.
• Make PR

Project

https://www.carbondesignsystem.com

Section

https://carbondesignsystem.com/community/patterns/

Problem

Outdated and should be removed.

Solution

No response

Suggested Severity

Severity 2 = The documentation is wrong or missing major details. It conflicts with what we are saying in another part of the system.

Application

Carbon

Code of Conduct

• I agree to follow this project's Code of Conduct
• I checked the current issues for duplicate problems