Add removal of eventStatusFromHttpCode

Author: lforst

MIGRATION.md

@@ -289,6 +289,7 @@ For our efforts to reduce bundle size of the SDK we had to remove and refactor p
   decreasing bundle-size, `Backend` was removed.
 - Remove support for Opera browser pre v15
 - Rename `UserAgent` integration to `HttpContext` (see [#5027](https://github.com/getsentry/sentry-javascript/pull/5027))
+- Removed `eventStatusFromHttpCode` to save on bundle size.
 
 ## Sentry Angular SDK Changes