[RXCE] In RxRemoveNameNetFcb(), check if name was already removed. MS doesn't do this, but as we use double linked-list macros that perform extra sanity checks, this is required. This can be called twice for a single FCB.
[RXCE] In spite of what its name may look like: SyncEvent is a notification event, not a sync event. Use the correct event for synchronization. This avoids infinite wait in certain circumstances in RxScavengeFobxsForNetRoot()