Revert "데모용 임시 회원가입 구현"

This reverts commit eb913366646f43fda669f0550788e0888c44b95a.

src/lib/server/services/auth.ts

@@ -9,7 +9,7 @@ import {
   registerSessionUpgradeChallenge,
   consumeSessionUpgradeChallenge,
 } from "$lib/server/db/session";
-import { createUser, getUser, getUserByEmail, setUserPassword } from "$lib/server/db/user";
+import { getUser, getUserByEmail, setUserPassword } from "$lib/server/db/user";
 import env from "$lib/server/loadenv";
 import { startSession } from "$lib/server/modules/auth";
 import { verifySignature, generateChallenge } from "$lib/server/modules/crypto";
@@ -65,27 +65,6 @@ export const logout = async (sessionId: string) => {
   await deleteSession(sessionId);
 };
 
-export const register = async (
-  email: string,
-  nickname: string,
-  password: string,
-  ip: string,
-  userAgent: string,
-) => {
-  if (password.length < 8) {
-    error(400, "Too short password");
-  }
-
-  const existingUser = await getUserByEmail(email);
-  if (existingUser) {
-    error(409, "Email already registered");
-  }
-
-  const hashedPassword = await hashPassword(password);
-  const { id } = await createUser(email, nickname, hashedPassword);
-  return { sessionIdSigned: await startSession(id, ip, userAgent) };
-};
-
 export const createSessionUpgradeChallenge = async (
   sessionId: string,
   userId: number,