Merge pull request #188 from ethereum-optimism/qbzzt/230614-remove-atst0-sdk

feat(atst-0): Remove the SDK

Author: qbzzt

ecosystem/attestation-station/README.md

@@ -14,7 +14,5 @@ On the production Optimism network the contract is [at the same address](https:/
 ## Table of content
 
 - [AttestationStation: Direct contract access](contract-access/README.md)
-- [AttestationStation: The SDK](using-sdk/README.md)
-- [Web based user interface]
 
 

ecosystem/attestation-station/contract-access/README.md

@@ -10,9 +10,6 @@ In this tutorial you learn how to read, interpret, and write those attestations.
 The contract we'll be using is on the OP Goerli network, at address [`0xEE36eaaD94d1Cc1d0eccaDb55C38bFfB6Be06C77`](https://goerli-explorer.optimism.io/address/0xEE36eaaD94d1Cc1d0eccaDb55C38bFfB6Be06C77).
 On OP Mainnet the contract is [at the same address](https://explorer.optimism.io/address/0xEE36eaaD94d1Cc1d0eccaDb55C38bFfB6Be06C77)
 
-This is one of the methods to access AttestationStation (ATST).
-[There are other ways](../README.md).
-
 ## Prerequisites
 
 - You have [Node.js](https://nodejs.org/en/) running on your computer, as well as [yarn](https://classic.yarnpkg.com/lang/en/).