[chronik-client test scripts] Remove debug logs and correct step orders

Summary: Review setup scripts for chronik-client tests and proofread -- remove debug logs and correct misnumbered steps.

Test Plan: Confirm we are only changing self.log.info statements

Reviewers: #bitcoin_abc, Fabien

Reviewed By: #bitcoin_abc, Fabien

Differential Revision: https://reviews.bitcoinabc.org/D15529