None is no longer a valid reverse proxy option.

synapse_topology/view/webui/js/actions/constants.js

@@ -10,7 +10,6 @@ export const REVERSE_PROXY_TYPES = {
   HAPROXY: "HAPROXY",
   NGINX: "NGINX",
   OTHER: "OTHER",
-  NONE: "NONE",
 }
 
 export const TLS_TYPES = {

synapse_topology/view/webui/js/components/ReverseProxy.jsx

@@ -27,7 +27,6 @@ export default ({ onClick }) => {
       <option value={REVERSE_PROXY_TYPES.HAPROXY}>HAProxy</option>
       <option value={REVERSE_PROXY_TYPES.NGINX}>NGiNX</option>
       <option value={REVERSE_PROXY_TYPES.OTHER}>Some other Reverse Proxy</option>
-      <option value={REVERSE_PROXY_TYPES.NONE}>I will either not use a Reverse Proxy, or I will use delegation</option>
     </select>
     <div>
       <button onClick={() => onClick(reverseProxy)}>Safety First</button>