Remove placeholders

release notes/v0.50.0.md

@@ -23,8 +23,6 @@ You can find a list of all the APIs that we expect to convert to async in a comm
 
 Awaiting on something that’s not a thenable just returns that value, which means you can add the `await` keyword against APIs that will become async to future proof your test scripts.
 
-### (_optional h3_) `<big_breaking_change>` `#pr`
-
 ## New features
 
 ### Add support for uploading files from the browser module [browser#1097](https://github.com/grafana/xk6-browser/pull/1097), [browser#1244](https://github.com/grafana/xk6-browser/pull/1244)
@@ -165,7 +163,3 @@ With this release, we have overhauled and (tremendously) improved the performanc
 * [webcrypto#59](https://github.com/grafana/xk6-webcrypto/pull/59) makes `newTestSetup` rely on k6's modulestest.
 * [webcrypto#58](https://github.com/grafana/xk6-webcrypto/pull/58) addresses linter issues related to repeated static strings.
 * [3633](https://github.com/grafana/k6/pull/3633) updates k6 dependencies.
-
-## _Optional_ Roadmap
-
-_Discussion of future plans_