diff --git a/src/github.com/matrix-org/dendrite/roomserver/query/query.go b/src/github.com/matrix-org/dendrite/roomserver/query/query.go
index 30b695fb4..7ec8dcb5b 100644
--- a/src/github.com/matrix-org/dendrite/roomserver/query/query.go
+++ b/src/github.com/matrix-org/dendrite/roomserver/query/query.go
@@ -40,18 +40,6 @@ type RoomserverQueryAPIDatabase interface {
 	// Lookup the numeric IDs for a list of events.
 	// Returns an error if there was a problem talking to the database.
 	EventNIDs(eventIDs []string) (map[string]types.EventNID, error)
-	// Save a given room alias with the room ID it refers to.
-	// Returns an error if there was a problem talking to the database.
-	SetRoomAlias(alias string, roomID string) error
-	// Lookup the room ID a given alias refers to.
-	// Returns an error if there was a problem talking to the database.
-	GetRoomIDFromAlias(alias string) (string, error)
-	// Lookup all aliases referring to a given room ID.
-	// Returns an error if there was a problem talking to the database.
-	GetAliasesFromRoomID(roomID string) ([]string, error)
-	// Remove a given room alias.
-	// Returns an error if there was a problem talking to the database.
-	RemoveRoomAlias(alias string) error
 }
 
 // RoomserverQueryAPI is an implementation of api.RoomserverQueryAPI