[package:http_profile] Update experimental status notice in README.md

pkgs/http_profile/README.md

@@ -56,14 +56,8 @@ into an HTTP client.
 
 ## Status: experimental
 
-**NOTE**: This package is currently experimental and published under the
-[labs.dart.dev](https://dart.dev/dart-team-packages) pub publisher in order to
-solicit feedback.
-
-For packages in the labs.dart.dev publisher we generally plan to either graduate
-the package into a supported publisher (dart.dev, tools.dart.dev) after a period
-of feedback and iteration, or discontinue the package. These packages have a
-much higher expected rate of API and breaking changes.
+**NOTE**: This package is currently experimental, so new versions that include
+API and breaking changes may be published frequently.
 
 Your feedback is valuable and will help us evolve this package. For general
 feedback, suggestions, and comments, please file an issue in the