diff --git a/src/lib/user.js b/src/lib/user.js
deleted file mode 100644
index d79e958a..00000000
--- a/src/lib/user.js
+++ /dev/null
@@ -1,41 +0,0 @@
-'use server'
-
-import { getSession } from './authActions'
-
-const { PrismaClient } = require('@prisma/client')
-
-const prisma = new PrismaClient()
-
-export async function getUserByIdAndPassword({ userId, password }) {
-  return prisma.m_USER.findFirst({
-    where: {
-      USER_ID: userId,
-      PASSWORD: password,
-    },
-  })
-}
-
-export async function getUser(userId) {
-  return prisma.m_USER.findUnique({
-    where: {
-      user_id: userId,
-    },
-  })
-}
-
-export async function getUsers() {
-  return prisma.m_USER.findMany({
-    where: {
-      // USER_ID: 'daiwajoho01',
-      USER_ID: { in: ['daiwajoho01', 'daiwajoho', 'daiwabutsuryu'] },
-    },
-  })
-}
-
-export async function checkSession() {
-  const session = await getSession()
-
-  return {
-    session,
-  }
-}