feat(enum): Adding in drop enum function.

[paulmowat]

• Does npm run test or npm run test-DIALECT pass with this change (including linting)?
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Description of change

Closes #2554 by adding in dropEnum function requested.

Copied existing dropEnumAll logic, and removed the list of all enums and now passing in enum that we wish want to drop.

[codecov]

Codecov Report

Merging #9641 into master will decrease coverage by <.01%.
The diff coverage is 75%.

[paulmowat]

Where should I add test to for this?

[sushantdhiman]

@paulmowat you can add test in a new file dropEnum.test.js here