_content/blog: deadcode blog post

The first draft was reviewed in https://go.dev/cl/540477.

Change-Id: Ief0b42edd98b9165d0fb8fe034fc9d005c92666d
Reviewed-on: https://go-review.googlesource.com/c/website/+/547981
LUCI-TryBot-Result: Go LUCI <[email protected]>
Reviewed-by: Mauri de Souza Meneguzzo <[email protected]>
Reviewed-by: Eli Bendersky <[email protected]>
Auto-Submit: Alan Donovan <[email protected]>

Author: adonovan