Remove old env_logger and log dependencies

[emma31-dev]

Description

BDK-CLI has had env_logger for over 4 years and it served the project well but in recent time tracing came along because of payjoin and in is now used in many other areas of the codebase. env_logger with log is only used in main.rs and config.rs for just a single log. yet the package itself adds to binary size with little use now tracing handles the logs better.

Changelog notice

• Dropped env-logger and log dependencies

Checklists

All Submissions:

• I've signed all my commits
• I followed the contribution guidelines
• I ran cargo fmt and cargo clippy before committing