[Serverless]: Security - Asset management page has minimal content

[joepeeples]

Serverless Docs

Elastic Security

Description

The Asset Management page is just a list of a few links to other sections, without any helpful context. The actual Assets page in the UI is also just a minimal list of links, so maybe we don't really need to document it on its own docs page. We also have a similar run-down of the Assets page in the Elastic Security UI overview, so users can get context from that already existing section.

Resources and additional context

We can always restore and build up this page if the Assets UI ever becomes a proper asset management experience and more than just a list of links, but for now we can probably retire this page.