diff --git a/msgpack_writer.go b/msgpack_writer.go
index 7c7adc7..d929153 100644
--- a/msgpack_writer.go
+++ b/msgpack_writer.go
@@ -165,7 +165,3 @@ func (wr *msgpackWriter) EndContainer() error {
 	wr.containers = wr.containers[:len(wr.containers)-1]
 	return nil
 }
-
-func (wr *msgpackWriter) GetData() ([]byte, error) {
-	return nil, nil
-}