remove obsolete docs.rs docs, link to new dev-guide

src/SUMMARY.md

@@ -71,9 +71,6 @@
 - [rustc-dev-guide](./rustc-dev-guide/index.md)
 - [crates.io](./crates-io/index.md)
 - [docs.rs](./docs-rs/index.md)
-  - [Adding dependencies to the build environment](./docs-rs/add-dependencies.md)
-  - [Self-hosting a docs.rs instance](./docs-rs/self-hosting.md)
-  - [Maintenance procedures](./docs-rs/maintenance.md)
 - [Rustdoc](./rustdoc/index.md)
     - [Calendar](./rustdoc/calendar.md)
     - [Meetings](./rustdoc/meetings.md)
@@ -113,7 +110,6 @@
         - [External CI Runners](./infra/docs/external-ci-runners.md)
         - [GitHub App for dev-desktops](./infra/docs/dev-desktop-github-app.md)
         - [Domain names and DNS](./infra/docs/dns.md)
-        - [docs.rs](./infra/docs/docs-rs.md)
         - [ECS services management](./infra/docs/ecs-services.md)
         - [Hardware Security Keys](./infra/docs/hardware-security-keys.md)
         - [Monitoring](./infra/docs/monitoring.md)

src/docs-rs/index.md

@@ -7,11 +7,8 @@
 * Source code: [rust-lang/docs.rs][repo]
 * Hosted on: `docsrs.infra.rust-lang.org` (behind the bastion -- [how to connect][bastion-connect])
 * Maintainers: [docs.rs team]
-* [Instance metrics][grafana-instance] (only available to infra team members).
-* [Application metrics][grafana-app] (only available to infra team members).
+* [Dev guide](https://rust-lang.github.io/docs.rs/)
 
 [repo]: https://github.com/rust-lang/docs.rs
-[grafana-instance]: https://grafana.rust-lang.org/d/rpXrFfKWz/instance-metrics?orgId=1&var-instance=docsrs.infra.rust-lang.org:9100
-[grafana-app]: https://grafana.rust-lang.org/d/-wWFg2cZz/docs-rs?orgId=1
 [bastion-connect]: https://forge.rust-lang.org/infra/docs/bastion.html#logging-into-servers-through-the-bastionmd#logging-into-servers-through-the-bastion
 [docs.rs team]: https://www.rust-lang.org/governance/teams/dev-tools#docs-rs