update changelog

Author: nicohrubec

CHANGELOG.md

@@ -4,10 +4,6 @@
 
 ### Important Changes
 
-- **feat(tanstackstart-react): Auto-instrument request middleware ([#18989](https://github.com/getsentry/sentry-javascript/pull/18989))**
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-  The `sentryTanstackStart` Vite plugin now automatically instruments `middleware` arrays in `createFileRoute()`. This captures performance data without requiring manual wrapping with `wrapMiddlewaresWithSentry()`.
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 - **feat(tanstackstart-react): Auto-instrument server function middleware ([#19001](https://github.com/getsentry/sentry-javascript/pull/19001))**
 
   The `sentryTanstackStart` Vite plugin now automatically instruments middleware in `createServerFn().middleware([...])` calls. This captures performance data without requiring manual wrapping with `wrapMiddlewaresWithSentry()`.