Removed Dead Code

[manny-m]

Closes ENT-3342

Used npx unimported to find 10 files not being referenced in our app. These changes did not significantly change our bundle size.

There are still 5 files that are also not being imported by our app:

   1 │ src/__mocks__/reactResponsive.mock.js
   2 │ src/components/dashboard/main-content/course-enrollments/data/index.js
   3 │ src/components/skills-quiz/__mocks__/react-instantsearch-dom.jsx
   4 │ src/setupTest.js
   5 │ src/utils/tests.jsx

They were not removed because they are either mocks, test utilities, or used by 3rd party libraries.

Should consider adding some sort of linter to merge pipeline to catch these.

More about unimported here.

[coveralls]

Pull Request Test Coverage Report for Build 1742046944

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.09%) to 72.537%

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Totals
Change from base Build 1740731794:	0.09%
Covered Lines:	1925
Relevant Lines:	2549

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💛 - Coveralls

[long74100]

this file was edited recently but not used 🤔

[macdiesel]

Since there is a lot of pathway stuff in this PR I would like to page @moconnell1453 to this PR. Could you have someone on your team take a look at this and verify these file are no longer needed?