For revoking the token approval, we will be using the optimism block explorer ’s token approval tool here. Below is direct link to the optimism’s approval checker. https://optimistic.etherscan.io/Go to the optimism’s approval checker websiteConnect your walletClick the Connect to Web3 button, choose the MetaMask in the pop-up window. In MetaMask, choose your optimism wallet account. Please note: If you find that there is is no change in the website interface at this time, repeat the above ope...