Update docs for build-mode: autobuild

The `autobuild` Action is no longer needed or recommended.

init/action.yml

@@ -36,10 +36,7 @@ inputs:
  - `none`: The database will be created without building the source code.
  Available for all interpreted languages and some compiled languages.
  - `autobuild`: The database will be created by attempting to automatically build the source
- code.
- To use this build mode, ensure that your workflow calls the `autobuild` action
- between the `init` and `analyze` steps.
- Available for all compiled languages.
+ code. Available for all compiled languages.
  - `manual`: The database will be created by building the source code using a manually
  specified build command. To use this build mode, specify manual build steps in
  your workflow between the `init` and `analyze` steps. Available for all