diff --git a/client/client_handler.go b/client/client_handler.go
index e6d0c37..1ebc2da 100644
--- a/client/client_handler.go
+++ b/client/client_handler.go
@@ -19,6 +19,4 @@ type ClientHandler interface {
 
 	GetRequestID() interface{}
 	Validate()
-
-	addWrite(cs *CallState)
 }