Don't send rewrite events

roomserver/api/input.go

@@ -35,10 +35,6 @@ const (
 	// KindBackfill event extend the contiguous graph going backwards.
 	// They always have state.
 	KindBackfill = 3
-	// KindRewrite events are used when rewriting the head of the room
-	// graph with entirely new state. The output events generated will
-	// be state events rather than timeline events.
-	KindRewrite = 4
 )
 
 // DoNotSendToOtherServers tells us not to send the event to other matrix

roomserver/api/wrapper.go

@@ -146,7 +146,7 @@ func SendEventWithRewrite(
 		// Each of these rewrite events includes all of the rewrite events
 		// that came before in their StateEventIDs.
 		ires = append(ires, InputRoomEvent{
-			Kind:          KindRewrite,
+			Kind:          KindOutlier,
 			Event:         authOrStateEvent.Headered(event.RoomVersion),
 			AuthEventIDs:  authOrStateEvent.AuthEventIDs(),
 			HasState:      true,

roomserver/internal/input/input_events.go

@@ -136,15 +136,6 @@ func (r *Inputer) processRoomEvent(
 		return event.EventID(), rejectionErr
 	}
 
-	if input.Kind == api.KindRewrite {
-		logrus.WithFields(logrus.Fields{
-			"event_id": event.EventID(),
-			"type":     event.Type(),
-			"room":     event.RoomID(),
-		}).Debug("Stored rewrite")
-		return event.EventID(), nil
-	}
-
 	if err = r.updateLatestEvents(
 		ctx,                 // context
 		roomInfo,            // room info for the room being updated

roomserver/roomserver_test.go

@@ -344,7 +344,7 @@ func TestOutputRewritesState(t *testing.T) {
 	for i := 0; i < len(rewriteEvents)-1; i++ {
 		ev := rewriteEvents[i]
 		inputEvents = append(inputEvents, api.InputRoomEvent{
-			Kind:          api.KindRewrite,
+			Kind:          api.KindOutlier,
 			Event:         ev,
 			AuthEventIDs:  ev.AuthEventIDs(),
 			HasState:      true,