Remove redundant basemodelsetup

[sallymatson]

Description

Removed depreciated setup method of the BaseModel, and references throughout the codebase.

Fixes # (issue)

Type of change

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

Key checklist

• Make sure you've run the pre-commit checks: $ pre-commit run -a
• All tests pass: $ poetry run pytest

Further checks

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

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 94.56%. Comparing base (913a228) to head (200851a).

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #667      +/-   ##
===========================================
- Coverage    94.57%   94.56%   -0.02%     
===========================================
  Files           73       73              
  Lines         4645     4634      -11     
===========================================
- Hits          4393     4382      -11     
  Misses         252      252              

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