Remove superfluous method definitions from specs

[mvz]

Summary

Removes some unused spec helper methods.

Details

Specs contained helper methdos that were defined but never used. This change removes them.

Motivation and Context

Originally part of #881, but since that change turned out to be a bit more complex than expected, I'm presenting it separately here.

How Has This Been Tested?

I ran the specs.

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation update
• Internal change (refactoring, test improvements, developer experience or update of dependencies)

Checklist:

• I've added tests for my code
• My change requires a change to the documentation.
• I have updated the documentation accordingly.