Remove lorenzo sponsor message per request

remove sponsor server, still am a sponsor

Author: lorenzo132

README.md

@@ -166,10 +166,6 @@ Special thanks to our sponsors for supporting the project.
   <img height=150 src='https://i.imgur.com/WyzaPKY.png' style='margin:10px'>
 </a>
 
-<a href='https://discord.gg/zaeVCaV'>
-  <img height=150 src='https://imgur.com/8F18l3v.png' style='margin:10px'>
-</a>
-
 Become a sponsor on [Patreon](https://patreon.com/kyber).
 
 ## Plugins