Drop requesting-variables page

docs/how-to-get-help.md

@@ -74,7 +74,7 @@ OpenSAFELY uses GitHub to manage and share code and other platform resources. If
 
 Issues can be submitted for lots of different things — new variables or other features, bug reports, additional R or Stata packages, documentation updates, and so on.  All our core software packages live in the [`opensafely-core`](https://github.com/opensafely-core/) GitHub organisation.
 
-The most common requests are about library support, and new study definition variables. We have a whole page describing [how to request new libraries](requesting-libraries.md), and another about [how to request new study variables](requesting-variables.md). If you want to report bugs or request features in the `opensafely` command-line tool, you can do so in [its own dedicated issue tracker](https://github.com/opensafely-core/opensafely-cli/issues).
+The most common requests are about library support; this page describes [how to request new libraries](requesting-libraries.md). If you want to report bugs or request features in the `opensafely` command-line tool, you can do so in [its own dedicated issue tracker](https://github.com/opensafely-core/opensafely-cli/issues).
 
 Other than this, you will need to choose the most appropriate repo to submit an issue. If you're not sure where to submit your issue, just ask a question in our [Q&A forum](https://github.com/opensafely/documentation/discussions) and we can point you to the right place.
 

mkdocs.yml

@@ -82,7 +82,6 @@ nav:
       - How to get help: how-to-get-help.md
       - OpenSAFELY co-piloting service: copiloting-service.md
       - Requesting new libraries: requesting-libraries.md
-      - Requesting study definition variables: requesting-variables.md
       - Plan S and OpenSAFELY: plan-s.md
       - Updating the documentation: updating-the-docs.md
   - Bennett Institute Open Manifesto: open-data-manifesto.md