update index.html

Former-commit-id: f14c0848ad
Former-commit-id: 49f4aca8d234ece768f7d55fed37d13bf5d31b8f

index.html

@@ -308,20 +308,6 @@ unzip i2pfirefox.zip
       want to update the profiles, you don’t need it.
     </p>
     <pre><code class="language-sh">go install github.com/eyedeekay/amo-version@latest
-</code></pre>
-    <p>
-      If you also want to update the
-      <code>
-        user.js
-      </code>
-      in use by the Firefox targets, you will need
-      <code>
-        github-release
-      </code>
-      to download the latest release package that is offered by the
-      Arkenfox project.
-    </p>
-    <pre><code class="language-sh">go install github.com/github-release/github-release@latest
 </code></pre>
     <p>
       For Fedora, use Yum, for Arch use pacman or something else but make sure to tell everyone