chore: remove old username in dns option

app/routes/dns/overview.tsx

@@ -25,9 +25,7 @@ export async function loader() {
 	const dns = {
 		prefixes: config.prefixes,
 		magicDns: config.dns.magic_dns,
-		baseDomain: config.dns.use_username_in_magic_dns
-			? `[user].${config.dns.base_domain}`
-			: config.dns.base_domain,
+		baseDomain: config.dns.base_domain,
 		nameservers: config.dns.nameservers.global,
 		splitDns: config.dns.nameservers.split,
 		searchDomains: config.dns.search_domains,

app/routes/machines/overview.tsx

@@ -38,10 +38,6 @@ export async function loader({ request, context: lC }: LoaderFunctionArgs) {
 		if (config.dns.magic_dns) {
 			magic = config.dns.base_domain;
 		}
-
-		if (config.dns.use_username_in_magic_dns) {
-			magic = `[user].${magic}`;
-		}
 	}
 
 	return {

app/utils/config/headscale.ts

@@ -119,7 +119,6 @@ const HeadscaleConfig = z.object({
 				}),
 			)
 			.default([]),
-		use_username_in_magic_dns: goBool.default(false),
 	}),
 
 	oidc: z