chore: remove references to gitter

CONTRIBUTING.md

@@ -12,7 +12,7 @@ This is the process for committing code into master.
 6. After the review you should fix the issues (review comments, CI failures) by pushing a new commit for new review, iterating until the reviewers give their thumbs up and CI tests pass.
 7. If the branch merge conflicts with its target, rebase your branch onto the target branch.
 
-In case of questions about the contribution process or for discussion of specific issues please visit the [akka/dev gitter chat](https://gitter.im/akka/dev).
+In case of questions about the contribution process or for discussion of specific issues please visit the [akka forum](https://discuss.lightbend.com/c/akka/).
 
 ## Pull Request Requirements
 

README.md

@@ -43,7 +43,7 @@ If you find an issue that you'd like to see fixed, the quickest way to make that
 
 Refer to the [CONTRIBUTING.md](CONTRIBUTING.md) file for more details about the workflow, and general hints on how to prepare your pull request.
 
-You can also ask for clarifications or guidance in GitHub issues directly, or in the [akka/dev](https://gitter.im/akka/dev) chat if a more real time communication would be of benefit.
+You can also ask for clarifications or guidance in GitHub issues directly, or in the [akka forum](https://discuss.lightbend.com/c/akka/).
 
 ## License
 

docs/release-train-issue-template.md

@@ -50,7 +50,6 @@ For important patch releases, and only if critical issues have been fixed:
 
 - [ ] Send a release notification to [Lightbend discuss](https://discuss.akka.io)
 - [ ] Tweet using the [@akkateam](https://twitter.com/akkateam/) account (or ask someone to) about the new release
-- [ ] Announce on [Gitter akka/akka](https://gitter.im/akka/akka)
 - [ ] Announce internally (with links to Tweet, discuss)
 
 For minor or major releases:

project/ProjectAutoPlugin.scala

@@ -22,7 +22,7 @@ object ProjectAutoPlugin extends AutoPlugin {
       developers += Developer(
         "contributors",
         "Contributors",
-        "https://gitter.im/akka/dev",
+        "akka[email protected]",
         url("https://github.com/akka/akka-persistence-jdbc/graphs/contributors")),
       releaseNotesURL := (
         if ((ThisBuild / isSnapshot).value) None

project/project-info.conf

@@ -22,10 +22,6 @@ project-info {
         text: "Lightbend Discuss"
         url: "https://discuss.lightbend.com/c/akka/"
       }
-      {
-        text: "akka/akka Gitter channel"
-        url: "https://gitter.im/akka/akka"
-      }
     ]
   }
   core: ${project-info.shared-info} {