op-deployer: don't write superchainRoles stanza to intent.toml

[mds1]

Part of https://github.com/ethereum-optimism/platforms-team/issues/284

Remove superchainRoles stanza from default intent

Previously the default intent from running op-deployer init --l1-chain-id 11155111 --l2-chain-ids 12345 --workdir .deployer looked like this:

l1ChainID = 11155111
fundDevAccounts = true
contractArtifactsURL = "https://storage.googleapis.com/oplabs-contract-artifacts/artifacts-v1-ee07c78c3d8d4cd8f7a933c050f5afeebaa281b57b226cc6f092b19de2a8d61f.tar.gz"
contractsRelease = "op-contracts/v1.6.0"

[superchainRoles]
  proxyAdminOwner = "0xb9cdf788704088a4c0191d045c151fcbe2db14a4"
  protocolVersionsOwner = "0x85d646ed26c3f46400ede51236d8d7528196849b"
  guardian = "0x8c7e4a51acb17719d225bd17598b8a94b46c8767"

[[chains]]
  id = "0x0000000000000000000000000000000000000000000000000000000000003039"
  [chains.roles]
    proxyAdminOwner = "0x7759a8a43aa6a7ee9434ddb597beed64180c40fd"
    systemConfigOwner = "0x8e35d9523a0c4c9ac537d254079c2398c6f3b35f"
    governanceTokenOwner = "0x7759a8a43aa6a7ee9434ddb597beed64180c40fd"
    unsafeBlockSigner = "0xbb19dce4ce51f353a98dbab31b5fa3bc80dc7769"
    batcher = "0x0e9c62712ab826e06b16b2236ce542f711eaffaf"
    proposer = "0x86dfafe0689e20685f7872e0cb264868454627bc"
    challenger = "0xf1658da627dd0738c555f9572f658617511c49d5"

This PR changes it so the [superchainRoles] section is not written. This is desirable because by default chains will be deployed as standard chains, meaning the addresses used for the [superchainRoles] accounts are static and should not be set by the user. The resulting TOML file looks like this:

l1ChainID = 11155111
fundDevAccounts = true
contractArtifactsURL = "https://storage.googleapis.com/oplabs-contract-artifacts/artifacts-v1-ee07c78c3d8d4cd8f7a933c050f5afeebaa281b57b226cc6f092b19de2a8d61f.tar.gz"
contractsRelease = "op-contracts/v1.6.0"

[[chains]]
  id = "0x0000000000000000000000000000000000000000000000000000000000003039"
  [chains.roles]
    proxyAdminOwner = "0x7759a8a43aa6a7ee9434ddb597beed64180c40fd"
    systemConfigOwner = "0x8e35d9523a0c4c9ac537d254079c2398c6f3b35f"
    governanceTokenOwner = "0x7759a8a43aa6a7ee9434ddb597beed64180c40fd"
    unsafeBlockSigner = "0xbb19dce4ce51f353a98dbab31b5fa3bc80dc7769"
    batcher = "0x0e9c62712ab826e06b16b2236ce542f711eaffaf"
    proposer = "0x86dfafe0689e20685f7872e0cb264868454627bc"
    challenger = "0xf1658da627dd0738c555f9572f658617511c49d5"

[blmalone]

LGTM