TransformerDeployer: Fix `kill()` interface mismatch.

[dorothy-zbornak]

Description

The current TransformerDeployer.die() is calling Transformer.kill(), which does not exist. We actually want to call Transformer.kill(address payable ethRecipient). This PR fixes this.

We also now throw a revert error in deploy() if the create() opcode returns a null address, which indicates a constructor revert.

TODO before merging:

• [ ] Redeploy TransformerDeployer
• [ ] Have governor call TransformERC20.setTransformerDeployer() to new TransformerDeployer instance on all networks.
• [ ] Update contract-addresses.

Testing instructions

Types of changes

Checklist:

• [ ] Prefix PR title with [WIP] if necessary.
• [ ] Add tests to cover changes as needed.
• [ ] Update documentation as needed.
• [ ] Add new entries to the relevant CHANGELOG.jsons.

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[dorothy-zbornak]

Merged into #2657