Remove Level parameter from Technodata files

[tsmbland]

Description

Level is included as a parameter in the Technodata files, but this parameter isn't actually used anywhere in the model, so can be removed.

The Level parameter in the CommIn and CommOut files is used, so this stays, although I'm still trying to figure out what this does and will brush up the documentation in a separate PR.

Fixes # (issue)

Type of change

Please add a line in the relevant section of
CHANGELOG.md to
document the change (include PR #) - note reverse order of PR #s.

• New feature (non-breaking change which adds functionality)
• Optimization (non-breaking, back-end change that speeds up the code)
• Bug fix (non-breaking change which fixes an issue)
• Breaking change (whatever its nature)

Key checklist

• All tests pass: $ python -m pytest
• The documentation builds and looks OK: $ python -m sphinx -b html docs docs/build

Further checks

• Code is commented, particularly in hard-to-understand areas
• Tests added that prove fix is effective or that feature works

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 71.39%. Comparing base (e09a23d) to head (33b5d43).

Additional details and impacted files

@@           Coverage Diff            @@
##           develop     #374   +/-   ##
========================================
  Coverage    71.39%   71.39%           
========================================
  Files           44       44           
  Lines         5887     5887           
  Branches      1162     1162           
========================================
  Hits          4203     4203           
  Misses        1364     1364           
  Partials       320      320           

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[dalonsoa]

Maybe it was used by some obscure, never finally implemented neither documented functionality...