docs: Prepare for new sub tree

See #11925

docs/content/en/methods/site/BuildDrafts.md

@@ -1,28 +0,0 @@
----
-title: BuildDrafts
-description: Reports whether the current build includes draft pages.
-categories: []
-keywords: []
-action:
-  related: []
-  returnType: bool
-  signatures: [SITE.BuildDrafts]
----
-
-By default, draft pages are not published when building a site. You can change this behavior with a command line flag:
-
-```sh
-hugo --buildDrafts
-```
-
-Or by setting `buildDrafts` to `true` in your site configuration:
-
-{{< code-toggle file=hugo >}}
-buildDrafts = true
-{{< /code-toggle >}}
-
-Use the `BuildDrafts` method on a `Site` object to determine the current configuration:
-
-```go-html-template
-{{ .Site.BuildDrafts }} → true
-```