use response.status properly

Signed-off-by: Fredrik Adelöw <freben@gmail.com>

.changeset/lazy-eyes-switch.md

@@ -0,0 +1,5 @@
+---
+'@backstage/plugin-user-settings-backend': patch
+---
+
+Use `Response.status` instead of `.send(number)`

plugins/user-settings-backend/src/service/router.ts

@@ -114,7 +114,7 @@ export async function createRouterInternal(options: {
 
     await options.userSettingsStore.delete({ userEntityRef, bucket, key });
 
-    res.send(204).end();
+    res.status(204).end();
   });
 
   router.use(errorHandler());