remove CI dashboard :(

Author: BoxyUwU

src/tests/ci.md

@@ -447,23 +447,6 @@ More information is available in the [toolstate documentation].
 [rust-toolstate]: https://rust-lang-nursery.github.io/rust-toolstate
 [toolstate documentation]: https://forge.rust-lang.org/infra/toolstate.html
 
-## Public CI dashboard
-
-To monitor the Rust CI, you can have a look at the [public dashboard] maintained by the infra team.
-
-These are some useful panels from the dashboard:
-
-- Pipeline duration: check how long the auto builds take to run.
-- Top slowest jobs: check which jobs are taking the longest to run.
-- Change in median job duration: check what jobs are slowest than before. Useful
-  to detect regressions.
-- Top failed jobs: check which jobs are failing the most.
-
-To learn more about the dashboard, see the [Datadog CI docs].
-
-[Datadog CI docs]: https://docs.datadoghq.com/continuous_integration/
-[public dashboard]: https://p.datadoghq.com/sb/3a172e20-e9e1-11ed-80e3-da7ad0900002-b5f7bb7e08b664a06b08527da85f7e30
-
 ## Determining the CI configuration
 
 If you want to determine which `bootstrap.toml` settings are used in CI for a