chore(cleanup): remove "experimental" note (#5437)

minherz · web-flow · commit cd53e483bd81 · 2022-02-08T06:19:43.000-05:00
the note was made 6 years ago and is redundant now.
diff --git a/logging/apiv2/README.md b/logging/apiv2/README.md
@@ -6,6 +6,4 @@ This package includes auto-generated clients for the logging v2 API.
 Use the handwritten logging client (in the parent directory,
 cloud.google.com/go/logging) in preference to this.
 
-This code is EXPERIMENTAL and subject to CHANGE AT ANY TIME.
-
 
