Minimal changes to remove miden deps

[xunilrj]

Description

"miden" crate was yanked, so this is the minimal changeset to remove it as a dependency.
We may still keep some miden stuff around.

Checklist

• I have linked to any relevant issues.
• I have commented my code, particularly in hard-to-understand areas.
• I have updated the documentation where relevant (API docs, the reference, and the Sway book).
  • If my change requires substantial documentation changes, I have requested support from the DevRel team
• I have added tests that prove my fix is effective or that my feature works.
• I have added (or requested a maintainer to add) the necessary Breaking* or New Feature labels where relevant.
• I have done my best to ensure that my PR adheres to the Fuel Labs Code Review Standards.
• I have requested a review from the relevant team or maintainers.

[codspeed-hq]

CodSpeed Performance Report

Merging #6638 will improve performances by 20.91%

_{Comparing xunilrj/removing-miden-dep (3805b71) with master (b7e59f4)}

Summary

⚡ 1 improvements
✅ 21 untouched benchmarks

Benchmarks breakdown

	Benchmark	master	xunilrj/removing-miden-dep	Change
⚡	document_symbol	5.3 ms	4.4 ms	+20.91%