Remove unneeded .clone()

[grtlr]

Description of change

Removes a .clone() in the consensus worker. Also fixes a typo in bee_message.

Type of change

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• Bug fix (a non-breaking change which fixes an issue)

How the change has been tested

Running the test suite

Make sure to provide instructions for the maintainer as well as any relevant configurations.

Change checklist

Tick the boxes that are relevant to your changes, and delete any items that are not.

• I have followed the contribution guidelines for this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works
• I have checked that new and existing unit tests pass locally with my changes
• I have updated the CHANGELOG.md, if my changes are significant enough