Update .changeset/plenty-wasps-sleep.md

Author: Rich-Harris

.changeset/plenty-wasps-sleep.md

@@ -2,9 +2,4 @@
 'svelte': patch
 ---
 
-fix: ensure undefined attributes are removed during hydration
-
-Attributes set server-side but undefined on the client should be removed during hydration.
-This ensures expected cleanup behavior and resolves a mismatch between SSR and client-side rendering.
-
-Fixes sveltejs/kit#13890
+fix: remove undefined attributes on hydration