Unused Ownable library import in ProofConsumer contract

The ProofConsumer contract includes an import statement for the Ownable library from OpenZeppelin. However, the contract does not extend Ownable or use any of its functionalities. This import is therefore redundant and may indicate that the Ownable functionality was either forgotten or not needed.

The ProofConsumer contract imports the Ownable library from OpenZeppelin but does not utilize it. This can lead to unnecessary bloat in the contract and potential confusion about the contract's intended functionality.

Recommendations:

1. Evaluate necessity: determine if the contract needs to include ownership control.
   • If the contract should include ownership functionality, consider using Ownable2Step for a safer two-step ownership transfer process.
   • If the ownership control is not required, remove the import statement to clean up the code.
2. Implementing ownership control: if ownership control is needed, update the contract to extend Ownable2Step and implement ownership-specific functions.
3. Removing unnecessary import: if ownership control is not needed, simply remove the import statement.

Unresolved.