diff --git a/api/test/simulated_network.h b/api/test/simulated_network.h
index a159ee7de2..0c5d8291cb 100644
--- a/api/test/simulated_network.h
+++ b/api/test/simulated_network.h
@@ -79,10 +79,6 @@ class NetworkBehaviorInterface {
   virtual ~NetworkBehaviorInterface() = default;
 };
 
-// TODO(bugs.webrtc.org/9630) remove it after migration to new API.
-// Deprecated. DO NOT USE. Use NetworkBehaviorInterface instead.
-using NetworkSimulationInterface = NetworkBehaviorInterface;
-
 }  // namespace webrtc
 
 #endif  // API_TEST_SIMULATED_NETWORK_H_