spanner: remove beta notice
@@ -19,8 +19,6 @@ Package spanner provides a client for reading and writing to Cloud Spanner
databases. See the packages under admin for clients that operate on databases
and instances.
-Note: This package is in beta. Some backwards-incompatible changes may occur.
-
See https://cloud.google.com/spanner/docs/getting-started/go/ for an introduction
to Cloud Spanner and additional help on using this API.
