refactor: remove old API dependency

[ghost]

• Removed old API dependency in as unobtrusive way as possible
• Confirmed all vaults from yearn.finance are present
• Confirmed all APY and vault assets are correct
• Confirmed vault ordering is correct (one minor caveat is yvBOOST and yveCRV order are switched, but I actually think this is fine.. otherwise order is perfect. can change this if desired)
• Confirmed all special vault display names and icon URLs are correct (there are two special vault icon overrides that rely on yearn-assets/icons rather than multichain. everything else uses multichain)

[vercel]

@x48-crypto is attempting to deploy a commit to the Yearn Finance Team on Vercel.

A member of the Team first needs to authorize it.

[aws-amplify-us-east-1]

This pull request is automatically being deployed by Amplify Hosting (learn more).

Access this pull request here: https://pr-441.d1d7icenyb7ii0.amplifyapp.com

[yearn-integrations]

Important changes detected (payment related code)

• Found constant BACKSCRATCHER_ADDRESS in files app/containers/App/reducer.js (+ BACKSCRATCHER_ADDRESS,), app/containers/App/reducer.js (+ const vaultIsBackscratcher = vault.address === BACKSCRATCHER_ADDRESS;), app/containers/App/reducer.js (+ vault.token.icon = https://raw.githubusercontent.com/yearn/yearn-assets/master/icons/tokens/${BACKSCRATCHER_ADDRESS}/logo-128.png`;`)
• Found constant YVBOOST_ADDRESS in files app/containers/App/reducer.js (+ YVBOOST_ADDRESS,), app/containers/App/reducer.js (+ const vaultIsYvBoost = vault.address === YVBOOST_ADDRESS;), app/containers/App/reducer.js (+ vault.token.icon = https://raw.githubusercontent.com/yearn/yearn-assets/master/icons/tokens/${YVBOOST_ADDRESS}/logo-128.png`;`)
• Found constant API_ENV in files app/containers/Vaults/saga.js (- process.env.API_ENV === 'development' ||)
• Found constant NODE_ENV in files app/containers/Vaults/saga.js (- process.env.NODE_ENV === 'development')
• Found address 0xbD17B1ce622d73bD438b9E658acA5996dc394b0d in files app/containers/Vaults/saga.js. This address is from vault pSLP

[aws-amplify-us-east-1]

This pull request is automatically being deployed by Amplify Hosting (learn more).

Access this pull request here: https://pr-441.d1d7icenyb7ii0.amplifyapp.com

[yearn-integrations]

Important changes detected (payment related code)

• Found constant BACKSCRATCHER_ADDRESS in files app/containers/App/reducer.js (+ BACKSCRATCHER_ADDRESS,), app/containers/App/reducer.js (+ const vaultIsBackscratcher = vault.address === BACKSCRATCHER_ADDRESS;), app/containers/App/reducer.js (+ vault.token.icon = https://raw.githubusercontent.com/yearn/yearn-assets/master/icons/multichain-tokens/1/${BACKSCRATCHER_ADDRESS}/logo-128.png`;`)
• Found constant YVBOOST_ADDRESS in files app/containers/App/reducer.js (+ YVBOOST_ADDRESS,), app/containers/App/reducer.js (+ const vaultIsYvBoost = vault.address === YVBOOST_ADDRESS;), app/containers/App/reducer.js (+ vault.token.icon = https://raw.githubusercontent.com/yearn/yearn-assets/master/icons/multichain-tokens/1/${YVBOOST_ADDRESS}/logo-128.png`;`)
• Found constant API_ENV in files app/containers/Vaults/saga.js (- process.env.API_ENV === 'development' ||)
• Found constant NODE_ENV in files app/containers/Vaults/saga.js (- process.env.NODE_ENV === 'development')
• Found address 0xbD17B1ce622d73bD438b9E658acA5996dc394b0d in files app/containers/Vaults/saga.js. This address is from vault pSLP