Purge spurious debug parameter

[irm-codebase]

Fixes #607

Summary of changes in this pull request

Just removed a parameter that is no longer used from the Calliope __init__ function. Also updated the docstring from v0.6 to 0.7

Reviewer checklist

• [ ] Test(s) added to cover contribution
• [ ] Documentation updated
• [ ] Changelog updated
• [ ] Coverage maintained or improved

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 96.07%. Comparing base (872978d) to head (4b4da65). Report is 13 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #611 +/- ## ========================================== + Coverage 95.85% 96.07% +0.22% ========================================== Files 24 24 Lines 3619 3646 +27 Branches 788 733 -55 ========================================== + Hits 3469 3503 +34 + Misses 86 81 -5 + Partials 64 62 -2 ``` | [Files](https://app.codecov.io/gh/calliope-project/calliope/pull/611?dropdown=coverage&src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=calliope-project) | Coverage Δ | | |---|---|---| | [src/calliope/io.py](https://app.codecov.io/gh/calliope-project/calliope/pull/611?src=pr&el=tree&filepath=src%2Fcalliope%2Fio.py&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=calliope-project#diff-c3JjL2NhbGxpb3BlL2lvLnB5) | `96.77% <ø> (+1.98%)` | :arrow_up: | | [src/calliope/model.py](https://app.codecov.io/gh/calliope-project/calliope/pull/611?src=pr&el=tree&filepath=src%2Fcalliope%2Fmodel.py&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=calliope-project#diff-c3JjL2NhbGxpb3BlL21vZGVsLnB5) | `94.86% <ø> (+1.21%)` | :arrow_up: | ... and [12 files with indirect coverage changes](https://app.codecov.io/gh/calliope-project/calliope/pull/611/indirect-changes?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=calliope-project)