chore: remove GraphQL API documentation, redirect user to API console (#1386)

Our GraphQL API docs are severely outdated and there is
no clear way of generating them.

Author: jupblb

docs/api/graphql/index.mdx

@@ -48,17 +48,21 @@ For automated scripts, CI/CD pipelines, and production integrations, use [servic
 
 ## Documentation & tooling
 
-### API Console
+### API Console and documentation
 
-Sourcegraph includes a built-in API console that lets you write queries and view API documentation in your browser.
+Sourcegraph includes a built-in API console that lets you write queries and
+view API documentation in your browser.
 
-You can find the API console at any time by going to **Settings**, and then clicking **API console** from the left sidebar, or by visiting it directly at `https://sourcegraph.example.com/api/console`.
+You can find the API console at any time by going to **Settings**, and then
+clicking **API console** from the left sidebar, or by visiting it directly at
+`https://sourcegraph.example.com/api/console`.
 
-If you have not yet set up a Sourcegraph server, you can also test out the API on the [Sourcegraph.com API console](https://sourcegraph.com/api/console) (which always uses the latest version of the API).
+If you have not yet set up a Sourcegraph server, you can also test out the API
+on the [Sourcegraph.com API console](https://sourcegraph.com/api/console) (which
+always uses the latest version of the API).
 
-### Documentation
-
-Sourcegraph's GraphQL API documentation is available on the [API Docs](/api/graphql/api-docs) page, as well as directly in the API console itself. To access the documentation, click **Docs** on the right-hand side of the API console page.
+To access the documentation, click **Docs** on the right-hand side of the API
+console page.
 
 ### Search