remove references to dev-addons mailing list (#852)

src/content/community.md

@@ -5,7 +5,7 @@ permalink: /community/
 tags: [community, contribute, webextensions]
 contributors: [caitmuenster, grlwholifts]
 author: caitmuenster
-date: 2020-03-06 09:00:00
+date: 2020-12-03 
 ---
 
 <!-- Overview Page Hero Banner -->
@@ -52,10 +52,6 @@ There are several ways to stay up-to-date with Firefox add-on technology and con
 
 Stay up to date with the latest information about add-on technology on the [Add-ons blog](https://blog.mozilla.org/addons).
 
-### Email list
-
-Subscribe to our [mailing list](https://mail.mozilla.org/listinfo/dev-addons) dedicated to the development of the add-on ecosystem, including the site addons.mozilla.org (AMO), WebExtensions APIs, and public meetings.
-
 ### Questions about add-on development
 
 You can get help and support by posting to [Mozilla's community forum](https://discourse.mozilla.org/c/add-ons), [Stack Overflow](http://stackoverflow.com/questions/tagged/firefox-addon), or the [developer mailing list](https://mail.mozilla.org/listinfo/dev-addons). You can also talk with us on [Matrix](https://wiki.mozilla.org/Matrix) in the [Add-ons room](https://mzl.la/2u8ZGbg) (for general development questions) or in the [add-on reviewers room](https://mzl.la/2IJ2Oi1) (for questions about an add-on review).

src/includes/connect.liquid

@@ -13,7 +13,7 @@
         <div class="cell small-12 large-4">
             <h4>More</h4>
             <p><a href="https://wiki.mozilla.org/Matrix" class="irc">Matrix</a></p>
-            <p><a href="https://mail.mozilla.org/listinfo/dev-addons" class="mailinglist">Add-on Developers Mailing List</a></p>
+            <p><a href="https://discourse.mozilla.org/c/add-ons/" class="irc">Community forum</a></p>
         </div>
         <div class="cell small-12 large-5">
             <h4>Extensions Developer Newsletter</h4>