chore: remove what's new

Author: kevinkim-ogp

packages/frontend/src/components/NewsDrawer/NewsItemList.ts

@@ -11,17 +11,6 @@ const IF_THEN_EXTERNAL_LINK =
   'https://guide.plumber.gov.sg/user-guides/actions/toolbox'
 
 export const NEWS_ITEM_LIST: NewsItemProps[] = [
-  {
-    date: '2025-11-21',
-    tag: NEW_FEATURE_TAG,
-    title: 'Collaborators — add editors and viewers to your pipes',
-    details: dedent`
-      With collaborators, you can add editors or viewers to help build or troubleshoot your pipe. Read more about permissions and set up [here](https://guide.plumber.gov.sg/user-guides/pipe-settings#collaborators).
-    `,
-    multimedia: {
-      url: 'https://file.go.gov.sg/plumber-collaborators-whats-new.png',
-    },
-  },
   {
     date: '2025-09-22',
     tag: NEW_FEATURE_TAG,