fix: update comment about flushrows API
The API is GAed and ready for use.
@@ -48,9 +48,6 @@ var (
// BufferedStream is a form of checkpointed stream, that allows
// you to advance the offset of visible rows via Flush operations.
- //
- // NOTE: Buffered Streams are currently in limited preview, and as such
- // methods like FlushRows() may yield errors for non-enrolled projects.
BufferedStream StreamType = "BUFFERED"
// PendingStream is a stream in which no data is made visible to
