fix: deprecated variable

src/orbit-envoy.pug

@@ -10,8 +10,6 @@
   ```
   will return the route of the first chat component, if exists, or triggers an error.
 
-
-  Okay. This file really needs a cleanup now... Emergency, have to release for Friday...
 -
   let routes = new Set();
   const getRoute = (type, returnFirst = false) => {
@@ -62,7 +60,6 @@
     return result;
   }
   var federations = {};
-  let federationRegistering = "";
 
 for component of components
   -