chore: Update CONTRIBUTING.md

Remove mailing list

Author: marcoscaceres

CONTRIBUTING.md

@@ -1,14 +1,6 @@
-# Device and Sensors Working Group
+Spec development happens via [issues in this repository](https://github.com/w3c/geolocation-api/issues) and [pull requests](https://github.com/w3c/geolocation-api/pulls). 
 
-## Spec and API development
-
-Spec development happens via [issues in this repository](https://github.com/w3c/geolocation-api/issues). For general discussion, please use the [public-geolocation@w3.org mailing list](http://lists.w3.org/Archives/Public/public-geolocation/) with a `Subject:` prefix of `[geolocation]`.
-
-Updates to the spec must reference [resolved issues marked `needs spec`](https://github.com/w3c/geolocation-api/issues?q=is%3Aclosed+label%3A%22needs+spec%22).
-
-To make edits to the design, please send pull requests against the Nightly spec on the gh-pages branch.
-
-For normative changes, a corresponding [web-platform-tests](https://github.com/web-platform-tests/wpt) PR is highly appreciated. Typically, both PRs will be merged at the same time. Note that a test change that contradicts the spec should not be merged before the corresponding spec change. If testing is not practical, please explain why and if appropriate [file an issue](https://github.com/web-platform-tests/wpt/issues/new) to follow up later.
+For normative changes, a corresponding [web-platform-tests](https://github.com/web-platform-tests/wpt) PR is highly appreciated. Typically, both PRs will be merged at the same time. If testing is not practical, please explain why and if appropriate [file an issue](https://github.com/web-platform-tests/wpt/issues/new) to follow up later.
 
 Contributions to this repository are intended to become part of Recommendation-track documents
 governed by the [W3C Patent Policy](http://www.w3.org/Consortium/Patent-Policy-20040205/) and