[Cashtab] [chronik utxo handling p15] Remove debug logging statements used in testing for earlier diffs in this stack

Summary:
T2447

Depends on D11987

Remove debug console.log statements used in testing previous parts of this stack

Test Plan:
npm start
Ensure that dev console isn't showing all kinds of crazy values from this stack
Review diff to ensure it is only removing console.log statements and comments

Reviewers: #bitcoin_abc, emack

Reviewed By: #bitcoin_abc, emack

Differential Revision: https://reviews.bitcoinabc.org/D11989