diff --git a/webrtc/common_types.h b/webrtc/common_types.h
index fe3cc51663..e1a4c77d37 100644
--- a/webrtc/common_types.h
+++ b/webrtc/common_types.h
@@ -434,7 +434,6 @@ enum RawVideoType {
 };
 
 // Video codec
-enum { kConfigParameterSize = 128 };
 enum { kPayloadNameSize = 32 };
 enum { kMaxSimulcastStreams = 4 };
 enum { kMaxSpatialLayers = 5 };