Summary: The new C++ Differ has been validated on Android and iOS. Delete the old code path. Changelog: [Internal] Reviewed By: sammy-SC Differential Revision: D28904330 fbshipit-source-id: 2e0d8682f6b2a79f9758ed8b7b92809060835815
MountingTelemetry
TransactionTelemetry
ShadowTreeDelegate::shadowTreeWillCommit()
Scheduler::stopSurface()