Fix example code (#1568)

docs/pages/guides/email-and-password/email-verification-codes.md

@@ -172,7 +172,7 @@ async function verifyVerificationCode(user: User, code: string): Promise<boolean
  await db.commit();
  return false;
  }
- await db.table("email_verification_code").where("id", "=", code.id).delete();
+ await db.table("email_verification_code").where("id", "=", databaseCode.id).delete();
  await db.commit();
 
  if (!isWithinExpirationDate(databaseCode.expires_at)) {