> ConnectTrace used to subscribe to the mempool's NotifyEntryRemoved
> callback to be notified of transactions removed for conflict. Since
> PerBlockConnectTrace no longer tracks conflicted transactions,
> ConnectTrace no longer requires these notifications.
This is a backport of Core PR17477 [4/6]
https://github.com/bitcoin/bitcoin/pull/17477/commits/969b65f3f527631ede1a31c7855151e5c5d91f8f
Depends on D8866