[Cashtab] [wallet mgmt improvements p8] Remove or improve debug logging

Summary:
T2822

Depends on D12848

Remove debug logging used in previous diffs on this stack.

Test Plan: Confirm that only console.log statements have been edited.

Reviewers: #bitcoin_abc, emack

Reviewed By: #bitcoin_abc, emack

Differential Revision: https://reviews.bitcoinabc.org/D12849