Remove the IIFE's from files starting with D
This MR only remove unnecessary IIFEs and convert some inline IIFEs to its () => {} equivalent.
ref: #29219 (moved)
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
This MR only remove unnecessary IIFEs and convert some inline IIFEs to its () => {} equivalent.
ref: #29219 (moved)