changelog cleanup

Signed-off-by: Steve Kriss <stephen.kriss@gmail.com>

changelogs/CHANGELOG-v1.30.0.md

@@ -2,19 +2,13 @@ We are delighted to present version v1.30.0 of Contour, our layer 7 HTTP reverse
 
 A big thank you to everyone who contributed to the release.
 
-
-- [Major Changes](#major-changes)
 - [Minor Changes](#minor-changes)
 - [Other Changes](#other-changes)
-- [Docs Changes](#docs-changes)
 - [Deprecations/Removals](#deprecation-and-removal-notices)
 - [Installing/Upgrading](#installing-and-upgrading)
 - [Compatible Kubernetes Versions](#compatible-kubernetes-versions)
 - [Community Thanks!](#community-thanks)
 
-# Major Changes
-
-
 # Minor Changes
 
 ## Gateway API: Implement Listener/Route hostname isolation
@@ -82,10 +76,6 @@ With above ordering, any GRPCRoute that ranks lower, will be marked with below c
 - Updates to Go 1.22.5. See the [Go release notes](https://go.dev/doc/devel/release#go1.22.minor) for more information. (#6563, @sunjayBhatia)
 - Updates Envoy to v1.31.0. See the [Envoy release notes](https://www.envoyproxy.io/docs/envoy/v1.31.0/version_history/v1.31/v1.31.0) for more information about the content of the release. (#6569, @skriss)
 
-
-# Docs Changes
-
-
 # Deprecation and Removal Notices