refactor(auth): remove unused SSO provider retrieval logic

- Deleted the import statement for `getSSOProviders` and the associated logic for fetching issuer origins from SSO providers.
- This cleanup improves code clarity by removing unnecessary dependencies and streamlining the trusted origins configuration.

packages/server/src/lib/auth.ts

@@ -10,7 +10,6 @@ import { IS_CLOUD } from "../constants";
 import { db } from "../db";
 import * as schema from "../db/schema";
 import { getUserByToken } from "../services/admin";
-import { getSSOProviders } from "../services/proprietary/sso";
 import {
 	getWebServerSettings,
 	updateWebServerSettings,
@@ -50,14 +49,9 @@ const { handler, api } = betterAuth({
 			if (!settings) {
 				return [];
 			}
-
-			const providers = await getSSOProviders();
-			const issuerOrigins = providers.map((provider) => provider.issuer);
-
 			return [
 				...(settings?.serverIp ? [`http://${settings?.serverIp}:3000`] : []),
 				...(settings?.host ? [`https://${settings?.host}`] : []),
-				...issuerOrigins,
 				...(process.env.NODE_ENV === "development"
 					? [
 							"http://localhost:3000",