Bug 1685603 - Add QA Verification and Useful Dev sites lists to SM website - quick fix. r=me

src/dev/qa-verification.en.html

@@ -54,7 +54,6 @@ make sure they display and/or work correctly. They are grouped as follows:</p>
 
 <h2 id="popular-sites">Popular Sites</h2>
 <ul>
-<li><a href="https://www.seamonkey-project.org/">SeaMonkey</a></li>
 <li><a href="https://www.thunderbird.net/">Thunderbird</a></li>
 <li><a href="https://www.youtube.com/">YouTube</a></li>
 <li><a href="https://www.yahoo.com/">Yahoo</a></li>