Revert "Merge pull request #74 from vercel-labs:jp/next-auth"

This reverts commit 6051e186b5, reversing
changes made to 28f62d80cf.

auth.ts

@@ -1,26 +1,16 @@
-import NextAuth, { type DefaultSession } from 'next-auth'
+import NextAuth from 'next-auth'
 import GitHub from 'next-auth/providers/github'
 
-declare module 'next-auth' {
-  /**
-   * Returned by `useSession`, `getSession` and received as a prop on the `SessionProvider` React Context
-   */
-  interface Session {
-    user: {
-      /** The user's postal address. */
-      id: string
-    } & DefaultSession['user']
-  }
-}
-
 export const {
   handlers: { GET, POST },
   auth,
   CSRF_experimental
+  // @ts-ignore
 } = NextAuth({
   // @ts-ignore
   providers: [GitHub],
   callbacks: {
+    // @ts-ignore
     jwt: async ({ token, profile }) => {
       if (profile?.id) {
         token.id = profile.id