chore: Remove DEPLOYMENT and SUBDOMAINS_ENABLED (#5742)

server/utils/fetch.ts

@@ -19,10 +19,10 @@ export default function fetch(
 ): Promise<Response> {
   // In self-hosted, webhooks support proxying and are also allowed to connect
   // to internal services, so use fetchWithProxy without the filtering agent.
-  const fetch = env.isCloudHosted() ? nodeFetch : fetchWithProxy;
+  const fetch = env.isCloudHosted ? nodeFetch : fetchWithProxy;
 
   return fetch(url, {
     ...init,
-    agent: env.isCloudHosted() ? useAgent(url) : undefined,
+    agent: env.isCloudHosted ? useAgent(url) : undefined,
   });
 }