Remove mention of Wiki, IRC

templates/get-involved.twig

@@ -38,7 +38,7 @@
 					<p>{% trans %}You can help us by improving this website or documenting the software. The website sources are in our
 					   GitHub repo <a href="//github.com/LMMS/lmms.io">LMMS/lmms.io</a>, our documentation is hosted on
 					   <a href="//docs.lmms.io/">GitBook</a>.{% endtrans %}</p>
-					<p>{% trans %}Public registration on our Wiki is disabled due to spam issues. Please post to the
+					<p>{% trans %}Please post to the
 					   <a href="//discord.gg/pZZaPZRZ35">#website</a> channel on Discord if you're
 					   interested in helping out with the documentation!{% endtrans %}</p>
 				</div>
@@ -83,14 +83,12 @@
 		<div class="col-sm-6">
 			<div class="panel panel-custom">
 				<div class="panel-heading" id="irc">
-					<h3 class="panel-title"><i class="fas fa-fw fa-comment-alt"></i> Discord &amp; IRC</h3>
+					<h3 class="panel-title"><i class="fas fa-fw fa-comment-alt"></i> Chat</h3>
 				</div>
 				<div class="panel-body">
 					<p>{% trans %}<a href="https://discordapp.com/">Discord</a>
 					is the most active forum for LMMS development. Join our server 
 					<a href="/chat/">by clicking here</a>.{% endtrans %}</p>
-					<p>{% trans %}Our IRC channel is <a href="http://webchat.freenode.net/?channels=%23lmms">#lmms</a> on
-					<a href="https://freenode.net">Freenode</a>.{% endtrans %}</p>
 				</div>
 			</div>
 		</div>