vlc/macosx: indicate that the web plugin will no longer be updated and fix its download link

www.videolan.org/vlc/download-macosx.php

@@ -16,10 +16,6 @@
            "name"       => "VLC.app dmg package",
            "location"   => "$dlBase/$macosxversion/macosx/vlc-$macosxversion.dmg",
        ),
-       array(
-           "name"       => "VLC Web Browser plugin package",
-           "location"   => "$dlBase/$macosxversion/macosx/VLC-webplugin-$macosxversion.dmg",
-       )
    );
 
 ?>
@@ -30,6 +26,9 @@
     <h2>Devices and Mac OS X version</h2>
     <p class="projectDescription">VLC media player requires Mac OS X 10.7.5 or later. It runs on any 64bit Intel-based Mac. Previous devices are supported by older releases.<br />Note that the first generation of Intel-based Macs equipped with Core Solo or Core Duo processors is no longer supported. Please use version 2.0.10 linked below.</p>
 
+    <h2>Web browser plugin for Mac OS X</h2>
+    <p class="projectDescription">Support for NPAPI plugins was removed from all modern web browsers, so VLC's plugin is no longer maintained. The last version is 3.0.4 and can be found <a href="https://get.videolan.org/vlc/3.0.4/macosx/VLC-webplugin-3.0.4.dmg">here</a>. It will not receive any further updates.</p>
+
     <h2>Older versions of Mac OS X and VLC media player</h2>
     <p class="projectDescription">We provide older releases for users who wish to deploy our software on legacy releases of Mac OS X. You can find recommendations for the respective operating system version below. Note that <b>support ended</b> for all releases listed below and hence they won't receive any further updates.</p>
     <h3>Mac OS X 10.6 Snow Leopard</h3>