feat(bundling): remove deprecated UMD format support for rollup

[jaysoo]

This PR removes the UMD format from @nrwl/rollup:rollup, which has been deprecated with a warning since Nx 13.

Current Behavior

Expected Behavior

Related Issue(s)

Fixes #

[nx-cloud-staging]

☁️ Nx Cloud Report

CI is running/has finished running commands for commit bc478c0. As they complete they will appear below. Click to see the status, the terminal output, and the build insights.

📂 See all runs for this branch

---

✅ Successfully ran 12 targets

• nx affected --target=e2e --base=5e293eba4cf24d825dfaee60ee4ddfe6f9075956 --head=bc478c0e1d62a4b468aad649669a54466c2e747c --exclude=e2e-storybook,e2e-storybook-angular,e2e-react-native,e2e-detox,e2e-make-angular-cli-faster --parallel=1
• nx affected --target=test --base=5e293eba4cf24d825dfaee60ee4ddfe6f9075956 --head=bc478c0e1d62a4b468aad649669a54466c2e747c --parallel=1
• nx affected --target=build --base=5e293eba4cf24d825dfaee60ee4ddfe6f9075956 --head=bc478c0e1d62a4b468aad649669a54466c2e747c --parallel=3
• nx-cloud record -- yarn depcheck
• nx affected --target=lint --base=5e293eba4cf24d825dfaee60ee4ddfe6f9075956 --head=bc478c0e1d62a4b468aad649669a54466c2e747c --parallel=3
• nx-cloud record -- yarn nx workspace-lint
• nx-cloud record -- yarn check-lock-files
• nx-cloud record -- yarn check-commit
• nx-cloud record -- yarn nx format:check --base=5e293eba4cf24d825dfaee60ee4ddfe6f9075956 --head=bc478c0e1d62a4b468aad649669a54466c2e747c
• nx-cloud record -- yarn check-imports
• nx-cloud record -- yarn documentation
• nx build typedoc-theme

---

Sent with 💌 from NxCloud.

[vercel]

The latest updates on your projects. Learn more about Vercel for Git ↗︎

Name	Status	Preview	Updated
nx-dev	✅ Ready (Inspect)	Visit Preview	Oct 6, 2022 at 2:15AM (UTC)

[github-actions]

This pull request has already been merged/closed. If you experience issues related to these changes, please open a new issue referencing this pull request.