[KoushikSagarr]

What github issue is this PR for, if any?

Resolves [#7302]

What changed, and why?

• Deleted the obsolete app/javascript/src/emancipations.js DataTable initialization.
• Removed the unused require('./src/emancipations') entry from app/javascript/application.js.
• Confirmed that the emancipation checklist page no longer renders the legacy all-case-emancipations table targeted by this script.
• Kept changes strictly limited to the obsolete DataTable implementation and its application entry point.

This is another small, independently reviewable contribution toward removing obsolete JavaScript code from CASA.

How is this tested? (please write rspec and jest tests!) 💖💪

• Jest: 15 test suites passed, 124 tests passed, 0 failures.
• Asset build: npm run build && npm run build:css passed.
• RSpec: spec/requests/emancipation_checklists_spec.rb — 4 examples, 0 failures.
• Reference verification: Confirmed that the legacy DataTable initialization is no longer required by the emancipation checklist page.
• Git diff: git diff --check passed with no whitespace errors.

Screenshots please :)

Not applicable — this removes an inactive DataTable initializer without introducing UI changes.

Feelings gif (optional)

Another piece of dead code gone. Small changes, cleaner codebase! 💪