Make outdated banner noisier, cleanup layouts (#2634)

* make outdated notice more intrusive

* remove inner-page-no-masthead

* rename layouts

* add code tab notice to tour layout

* no outdated notice on sips

* do not emit language options for orphan translations

* remove redundant layouts

Author: bishabosha

_getting-started/index.md

@@ -4,7 +4,6 @@ title: Getting Started
 partof: getting-started
 languages: [fr, ja, ru, uk]
 includeTOC: true
-
 newcomer_resources:
   - title: Are You Coming From Java?
     description: What you should know to get to speed with Scala after your initial setup.