chore(supervisor): drop the self-hosted framing from the release note

Author: myftija

.server-changes/supervisor-org-placement-overrides.md

@@ -3,4 +3,4 @@ area: supervisor
 type: feature
 ---
 
-Self-hosted Kubernetes deployments can now pin an organization's runs to specific nodes, with per-organization node selectors and tolerations for run pods.
+Operators can now pin an organization's runs to specific nodes, with per-organization node selectors and tolerations for run pods.