The deploy config type in typescript is no longer required. The
Go version should now be considered the canonical version. This is
prep work for creating validation scripts in `op-chain-ops` for
deploy config JSON files that are added to the repository to
ensure that they have sane values, are not missing any values
and do not have any extra values.

This will make it easier to add or remove values over time,
reducing the number of implementations from 3 to 2 as there
is also a solidity version. The solidity version currently
has additional config that is not in the Go version, a follow
up PR will add those values to the Go version.

Also remove `ethers` from `contracts-bedrock` as a dep as
it is no longer needed.