Remove Signal

_includes/sections/voice-video-messenger.html

@@ -4,6 +4,7 @@
   <strong>If you are currently using a Video & Voice Messenger like Skype, Viber or Google Hangouts, you should pick an alternative here.</strong>
 </div>
 <div class="row mb-2">
+  <!-- Signal removed
   {% include card.html color="success"
   title="Mobile: Signal"
   image="/assets/img/tools/Signal.png"
@@ -13,7 +14,7 @@
   All communications are end-to-end encrypted. Signal is free and open source, enabling anyone to verify its security by auditing the code. The development team is supported by community donations and grants. There are no advertisements,
   and it doesn't cost anything to use."
   %}
-
+-->
   {% include card.html color="primary"
   title="Wire"
   image="/assets/img/tools/wire.png"