chore: removed announcement banner component

Author: shivani170

src/Shared/Components/AnnouncementBanner/AnnouncementBanner.tsx

@@ -18,7 +18,6 @@ export * from './ActionMenu'
 export * from './ActivityIndicator'
 export * from './AnimatedDeployButton'
 export * from './AnimatedTimer'
-export * from './AnnouncementBanner'
 export * from './APIResponseHandler'
 export * from './ArtifactInfoModal'
 export * from './Backdrop'